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Finding the Fourth Proportional to 125,700.52, 173,469.78 and 69,111.90

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Solution

The fourth proportional to 125,700.52, 173,469.78 and 69,111.90 is: 95,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,700.52 : 173,469.78 = 69,111.90 : x
  2. Step 2: Convert to fraction form
    125,700.52/173,469.78 = 69,111.90/x
  3. Step 3: Cross multiply
    125,700.52x = 173,469.78 × 69,111.90
  4. Step 4: Simplify right side
    125,700.52x = 11,988,826,088.38
  5. Step 5: Solve for x
    x = 11,988,826,088.38/125,700.52
  6. Step 6: Final answer
    x = 95,376.11

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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.