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Finding the Fourth Proportional to 121,662.57, 182,532.96 and 58,487.28

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Solution

The fourth proportional to 121,662.57, 182,532.96 and 58,487.28 is: 87,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,662.57 : 182,532.96 = 58,487.28 : x
  2. Step 2: Convert to fraction form
    121,662.57/182,532.96 = 58,487.28/x
  3. Step 3: Cross multiply
    121,662.57x = 182,532.96 × 58,487.28
  4. Step 4: Simplify right side
    121,662.57x = 10,675,856,340.75
  5. Step 5: Solve for x
    x = 10,675,856,340.75/121,662.57
  6. Step 6: Final answer
    x = 87,749.72

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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.