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Finding the Fourth Proportional to 162,789.92, 244,268.22 and 77,497.31

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Solution

The fourth proportional to 162,789.92, 244,268.22 and 77,497.31 is: 116,285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,789.92 : 244,268.22 = 77,497.31 : x
  2. Step 2: Convert to fraction form
    162,789.92/244,268.22 = 77,497.31/x
  3. Step 3: Cross multiply
    162,789.92x = 244,268.22 × 77,497.31
  4. Step 4: Simplify right side
    162,789.92x = 18,930,128,747.15
  5. Step 5: Solve for x
    x = 18,930,128,747.15/162,789.92
  6. Step 6: Final answer
    x = 116,285.64

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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.