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Finding the Fourth Proportional to 148,546.92, 205,020.96 and 88,150.87

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Solution

The fourth proportional to 148,546.92, 205,020.96 and 88,150.87 is: 121,663.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,546.92 : 205,020.96 = 88,150.87 : x
  2. Step 2: Convert to fraction form
    148,546.92/205,020.96 = 88,150.87/x
  3. Step 3: Cross multiply
    148,546.92x = 205,020.96 × 88,150.87
  4. Step 4: Simplify right side
    148,546.92x = 18,072,775,992.24
  5. Step 5: Solve for x
    x = 18,072,775,992.24/148,546.92
  6. Step 6: Final answer
    x = 121,663.75

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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.