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Finding the Fourth Proportional to 72,583.97, 108,773.85 and 57,726.95

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Solution

The fourth proportional to 72,583.97, 108,773.85 and 57,726.95 is: 86,509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583.97 : 108,773.85 = 57,726.95 : x
  2. Step 2: Convert to fraction form
    72,583.97/108,773.85 = 57,726.95/x
  3. Step 3: Cross multiply
    72,583.97x = 108,773.85 × 57,726.95
  4. Step 4: Simplify right side
    72,583.97x = 6,279,182,600.26
  5. Step 5: Solve for x
    x = 6,279,182,600.26/72,583.97
  6. Step 6: Final answer
    x = 86,509.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.