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Finding the Fourth Proportional to 125,609.76, 173,331.36 and 71,882.46

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Solution

The fourth proportional to 125,609.76, 173,331.36 and 71,882.46 is: 99,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,609.76 : 173,331.36 = 71,882.46 : x
  2. Step 2: Convert to fraction form
    125,609.76/173,331.36 = 71,882.46/x
  3. Step 3: Cross multiply
    125,609.76x = 173,331.36 × 71,882.46
  4. Step 4: Simplify right side
    125,609.76x = 12,459,484,551.95
  5. Step 5: Solve for x
    x = 12,459,484,551.95/125,609.76
  6. Step 6: Final answer
    x = 99,192.01

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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.