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Finding the Fourth Proportional to 71,342,223.54, 98,452,772.42 and 38,747,175.54

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Solution

The fourth proportional to 71,342,223.54, 98,452,772.42 and 38,747,175.54 is: 53,471,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,342,223.54 : 98,452,772.42 = 38,747,175.54 : x
  2. Step 2: Convert to fraction form
    71,342,223.54/98,452,772.42 = 38,747,175.54/x
  3. Step 3: Cross multiply
    71,342,223.54x = 98,452,772.42 × 38,747,175.54
  4. Step 4: Simplify right side
    71,342,223.54x = 3,814,766,855,357,410.50
  5. Step 5: Solve for x
    x = 3,814,766,855,357,410.50/71,342,223.54
  6. Step 6: Final answer
    x = 53,471,375.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.