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Finding the Fourth Proportional to 71,336.60, 98,436.56 and 39,497.52

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Solution

The fourth proportional to 71,336.60, 98,436.56 and 39,497.52 is: 54,502.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,336.60 : 98,436.56 = 39,497.52 : x
  2. Step 2: Convert to fraction form
    71,336.60/98,436.56 = 39,497.52/x
  3. Step 3: Cross multiply
    71,336.60x = 98,436.56 × 39,497.52
  4. Step 4: Simplify right side
    71,336.60x = 3,887,999,799.84
  5. Step 5: Solve for x
    x = 3,887,999,799.84/71,336.60
  6. Step 6: Final answer
    x = 54,502.18

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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.