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Finding the Fourth Proportional to 71,404.94, 98,542.68 and 39,573.16

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Solution

The fourth proportional to 71,404.94, 98,542.68 and 39,573.16 is: 54,613.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,404.94 : 98,542.68 = 39,573.16 : x
  2. Step 2: Convert to fraction form
    71,404.94/98,542.68 = 39,573.16/x
  3. Step 3: Cross multiply
    71,404.94x = 98,542.68 × 39,573.16
  4. Step 4: Simplify right side
    71,404.94x = 3,899,644,847.71
  5. Step 5: Solve for x
    x = 3,899,644,847.71/71,404.94
  6. Step 6: Final answer
    x = 54,613.09

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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.