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Finding the Fourth Proportional to 151,603.30, 227,514.30 and 84,972.70

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Solution

The fourth proportional to 151,603.30, 227,514.30 and 84,972.70 is: 127,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,603.30 : 227,514.30 = 84,972.70 : x
  2. Step 2: Convert to fraction form
    151,603.30/227,514.30 = 84,972.70/x
  3. Step 3: Cross multiply
    151,603.30x = 227,514.30 × 84,972.70
  4. Step 4: Simplify right side
    151,603.30x = 19,332,504,359.61
  5. Step 5: Solve for x
    x = 19,332,504,359.61/151,603.30
  6. Step 6: Final answer
    x = 127,520.34

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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.