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Finding the Fourth Proportional to 169,632.68, 254,061.47 and 80,948.48

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Solution

The fourth proportional to 169,632.68, 254,061.47 and 80,948.48 is: 121,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,632.68 : 254,061.47 = 80,948.48 : x
  2. Step 2: Convert to fraction form
    169,632.68/254,061.47 = 80,948.48/x
  3. Step 3: Cross multiply
    169,632.68x = 254,061.47 × 80,948.48
  4. Step 4: Simplify right side
    169,632.68x = 20,565,888,755.13
  5. Step 5: Solve for x
    x = 20,565,888,755.13/169,632.68
  6. Step 6: Final answer
    x = 121,237.78

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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.