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Finding the Fourth Proportional to 151,908.48, 227,809.92 and 84,543.30

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Solution

The fourth proportional to 151,908.48, 227,809.92 and 84,543.30 is: 126,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,908.48 : 227,809.92 = 84,543.30 : x
  2. Step 2: Convert to fraction form
    151,908.48/227,809.92 = 84,543.30/x
  3. Step 3: Cross multiply
    151,908.48x = 227,809.92 × 84,543.30
  4. Step 4: Simplify right side
    151,908.48x = 19,259,802,409.54
  5. Step 5: Solve for x
    x = 19,259,802,409.54/151,908.48
  6. Step 6: Final answer
    x = 126,785.56

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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.