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Finding the Fourth Proportional to 95,306.54, 143,006.39 and 67,405.89

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Solution

The fourth proportional to 95,306.54, 143,006.39 and 67,405.89 is: 101,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,306.54 : 143,006.39 = 67,405.89 : x
  2. Step 2: Convert to fraction form
    95,306.54/143,006.39 = 67,405.89/x
  3. Step 3: Cross multiply
    95,306.54x = 143,006.39 × 67,405.89
  4. Step 4: Simplify right side
    95,306.54x = 9,639,472,656.61
  5. Step 5: Solve for x
    x = 9,639,472,656.61/95,306.54
  6. Step 6: Final answer
    x = 101,141.78

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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.