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Finding the Fourth Proportional to 125,744.11, 173,530.16 and 69,156.97

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Solution

The fourth proportional to 125,744.11, 173,530.16 and 69,156.97 is: 95,438.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,744.11 : 173,530.16 = 69,156.97 : x
  2. Step 2: Convert to fraction form
    125,744.11/173,530.16 = 69,156.97/x
  3. Step 3: Cross multiply
    125,744.11x = 173,530.16 × 69,156.97
  4. Step 4: Simplify right side
    125,744.11x = 12,000,819,723.43
  5. Step 5: Solve for x
    x = 12,000,819,723.43/125,744.11
  6. Step 6: Final answer
    x = 95,438.42

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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.