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Finding the Fourth Proportional to 125,894.78, 173,734.34 and 69,306.15

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Solution

The fourth proportional to 125,894.78, 173,734.34 and 69,306.15 is: 95,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,894.78 : 173,734.34 = 69,306.15 : x
  2. Step 2: Convert to fraction form
    125,894.78/173,734.34 = 69,306.15/x
  3. Step 3: Cross multiply
    125,894.78x = 173,734.34 × 69,306.15
  4. Step 4: Simplify right side
    125,894.78x = 12,040,857,881.66
  5. Step 5: Solve for x
    x = 12,040,857,881.66/125,894.78
  6. Step 6: Final answer
    x = 95,642.24

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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.