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Finding the Fourth Proportional to 125,874.88, 188,680.08 and 63,414.40

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Solution

The fourth proportional to 125,874.88, 188,680.08 and 63,414.40 is: 95,054.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,874.88 : 188,680.08 = 63,414.40 : x
  2. Step 2: Convert to fraction form
    125,874.88/188,680.08 = 63,414.40/x
  3. Step 3: Cross multiply
    125,874.88x = 188,680.08 × 63,414.40
  4. Step 4: Simplify right side
    125,874.88x = 11,965,034,065.15
  5. Step 5: Solve for x
    x = 11,965,034,065.15/125,874.88
  6. Step 6: Final answer
    x = 95,054.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.