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Finding the Fourth Proportional to 49,660,440.80, 74,490,661.20 and 49,660,440.80

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Solution

The fourth proportional to 49,660,440.80, 74,490,661.20 and 49,660,440.80 is: 74,490,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,660,440.80 : 74,490,661.20 = 49,660,440.80 : x
  2. Step 2: Convert to fraction form
    49,660,440.80/74,490,661.20 = 49,660,440.80/x
  3. Step 3: Cross multiply
    49,660,440.80x = 74,490,661.20 × 49,660,440.80
  4. Step 4: Simplify right side
    49,660,440.80x = 3,699,239,070,675,457
  5. Step 5: Solve for x
    x = 3,699,239,070,675,457/49,660,440.80
  6. Step 6: Final answer
    x = 74,490,661.20

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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.