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Finding the Fourth Proportional to 125,641.50, 173,385.27 and 69,052.88

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Solution

The fourth proportional to 125,641.50, 173,385.27 and 69,052.88 is: 95,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,641.50 : 173,385.27 = 69,052.88 : x
  2. Step 2: Convert to fraction form
    125,641.50/173,385.27 = 69,052.88/x
  3. Step 3: Cross multiply
    125,641.50x = 173,385.27 × 69,052.88
  4. Step 4: Simplify right side
    125,641.50x = 11,972,751,376.15
  5. Step 5: Solve for x
    x = 11,972,751,376.15/125,641.50
  6. Step 6: Final answer
    x = 95,292.97

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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.