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Finding the Fourth Proportional to 151,543.92, 227,024.88 and 84,781.72

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Solution

The fourth proportional to 151,543.92, 227,024.88 and 84,781.72 is: 127,009.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,543.92 : 227,024.88 = 84,781.72 : x
  2. Step 2: Convert to fraction form
    151,543.92/227,024.88 = 84,781.72/x
  3. Step 3: Cross multiply
    151,543.92x = 227,024.88 × 84,781.72
  4. Step 4: Simplify right side
    151,543.92x = 19,247,559,809.19
  5. Step 5: Solve for x
    x = 19,247,559,809.19/151,543.92
  6. Step 6: Final answer
    x = 127,009.78

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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.