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Finding the Fourth Proportional to 125,874.72, 173,708.28 and 69,286.32

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Solution

The fourth proportional to 125,874.72, 173,708.28 and 69,286.32 is: 95,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,874.72 : 173,708.28 = 69,286.32 : x
  2. Step 2: Convert to fraction form
    125,874.72/173,708.28 = 69,286.32/x
  3. Step 3: Cross multiply
    125,874.72x = 173,708.28 × 69,286.32
  4. Step 4: Simplify right side
    125,874.72x = 12,035,607,474.73
  5. Step 5: Solve for x
    x = 12,035,607,474.73/125,874.72
  6. Step 6: Final answer
    x = 95,615.76

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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.