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Finding the Fourth Proportional to 125,882.49, 173,712.68 and 72,130.11

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Solution

The fourth proportional to 125,882.49, 173,712.68 and 72,130.11 is: 99,536.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,882.49 : 173,712.68 = 72,130.11 : x
  2. Step 2: Convert to fraction form
    125,882.49/173,712.68 = 72,130.11/x
  3. Step 3: Cross multiply
    125,882.49x = 173,712.68 × 72,130.11
  4. Step 4: Simplify right side
    125,882.49x = 12,529,914,356.14
  5. Step 5: Solve for x
    x = 12,529,914,356.14/125,882.49
  6. Step 6: Final answer
    x = 99,536.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.