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Finding the Fourth Proportional to 125,874.97, 173,710.19 and 69,286.34

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Solution

The fourth proportional to 125,874.97, 173,710.19 and 69,286.34 is: 95,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,874.97 : 173,710.19 = 69,286.34 : x
  2. Step 2: Convert to fraction form
    125,874.97/173,710.19 = 69,286.34/x
  3. Step 3: Cross multiply
    125,874.97x = 173,710.19 × 69,286.34
  4. Step 4: Simplify right side
    125,874.97x = 12,035,743,285.80
  5. Step 5: Solve for x
    x = 12,035,743,285.80/125,874.97
  6. Step 6: Final answer
    x = 95,616.65

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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.