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Finding the Fourth Proportional to 116,591.90, 160,892.07 and 68,860.70

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Solution

The fourth proportional to 116,591.90, 160,892.07 and 68,860.70 is: 95,024.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,591.90 : 160,892.07 = 68,860.70 : x
  2. Step 2: Convert to fraction form
    116,591.90/160,892.07 = 68,860.70/x
  3. Step 3: Cross multiply
    116,591.90x = 160,892.07 × 68,860.70
  4. Step 4: Simplify right side
    116,591.90x = 11,079,140,564.65
  5. Step 5: Solve for x
    x = 11,079,140,564.65/116,591.90
  6. Step 6: Final answer
    x = 95,024.96

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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.