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Finding the Fourth Proportional to 125,543.76, 173,248.76 and 68,951.50

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Solution

The fourth proportional to 125,543.76, 173,248.76 and 68,951.50 is: 95,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,543.76 : 173,248.76 = 68,951.50 : x
  2. Step 2: Convert to fraction form
    125,543.76/173,248.76 = 68,951.50/x
  3. Step 3: Cross multiply
    125,543.76x = 173,248.76 × 68,951.50
  4. Step 4: Simplify right side
    125,543.76x = 11,945,761,875.14
  5. Step 5: Solve for x
    x = 11,945,761,875.14/125,543.76
  6. Step 6: Final answer
    x = 95,152.18

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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.