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Finding the Fourth Proportional to 71,702.68, 98,923.24 and 43,398.04

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Solution

The fourth proportional to 71,702.68, 98,923.24 and 43,398.04 is: 59,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,702.68 : 98,923.24 = 43,398.04 : x
  2. Step 2: Convert to fraction form
    71,702.68/98,923.24 = 43,398.04/x
  3. Step 3: Cross multiply
    71,702.68x = 98,923.24 × 43,398.04
  4. Step 4: Simplify right side
    71,702.68x = 4,293,074,726.45
  5. Step 5: Solve for x
    x = 4,293,074,726.45/71,702.68
  6. Step 6: Final answer
    x = 59,873.28

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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.