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Finding the Fourth Proportional to 119,978.92, 180,077.46 and 63,865.97

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Solution

The fourth proportional to 119,978.92, 180,077.46 and 63,865.97 is: 95,857.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,978.92 : 180,077.46 = 63,865.97 : x
  2. Step 2: Convert to fraction form
    119,978.92/180,077.46 = 63,865.97/x
  3. Step 3: Cross multiply
    119,978.92x = 180,077.46 × 63,865.97
  4. Step 4: Simplify right side
    119,978.92x = 11,500,821,658.04
  5. Step 5: Solve for x
    x = 11,500,821,658.04/119,978.92
  6. Step 6: Final answer
    x = 95,857.02

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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.