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Finding the Fourth Proportional to 100,315,080.60, 140,154,134.70 and 100,315,080.60

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Solution

The fourth proportional to 100,315,080.60, 140,154,134.70 and 100,315,080.60 is: 140,154,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,315,080.60 : 140,154,134.70 = 100,315,080.60 : x
  2. Step 2: Convert to fraction form
    100,315,080.60/140,154,134.70 = 100,315,080.60/x
  3. Step 3: Cross multiply
    100,315,080.60x = 140,154,134.70 × 100,315,080.60
  4. Step 4: Simplify right side
    100,315,080.60x = 14,059,573,318,853,754
  5. Step 5: Solve for x
    x = 14,059,573,318,853,754/100,315,080.60
  6. Step 6: Final answer
    x = 140,154,134.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.