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Finding the Fourth Proportional to 71,726.68, 99,053.80 and 59,104.92

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Solution

The fourth proportional to 71,726.68, 99,053.80 and 59,104.92 is: 81,623.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,726.68 : 99,053.80 = 59,104.92 : x
  2. Step 2: Convert to fraction form
    71,726.68/99,053.80 = 59,104.92/x
  3. Step 3: Cross multiply
    71,726.68x = 99,053.80 × 59,104.92
  4. Step 4: Simplify right side
    71,726.68x = 5,854,566,924.70
  5. Step 5: Solve for x
    x = 5,854,566,924.70/71,726.68
  6. Step 6: Final answer
    x = 81,623.28

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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.