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Finding the Fourth Proportional to 84,492,288,002.80, 126,738,432,004.20 and 84,492,288,002.80

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Solution

The fourth proportional to 84,492,288,002.80, 126,738,432,004.20 and 84,492,288,002.80 is: 126,738,432,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,492,288,002.80 : 126,738,432,004.20 = 84,492,288,002.80 : x
  2. Step 2: Convert to fraction form
    84,492,288,002.80/126,738,432,004.20 = 84,492,288,002.80/x
  3. Step 3: Cross multiply
    84,492,288,002.80x = 126,738,432,004.20 × 84,492,288,002.80
  4. Step 4: Simplify right side
    84,492,288,002.80x = 10,708,420,097,922,150,957,056
  5. Step 5: Solve for x
    x = 10,708,420,097,922,150,957,056/84,492,288,002.80
  6. Step 6: Final answer
    x = 126,738,432,004.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.