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Finding the Fourth Proportional to 151,720.80, 227,062.80 and 133,058.40

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Solution

The fourth proportional to 151,720.80, 227,062.80 and 133,058.40 is: 199,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,720.80 : 227,062.80 = 133,058.40 : x
  2. Step 2: Convert to fraction form
    151,720.80/227,062.80 = 133,058.40/x
  3. Step 3: Cross multiply
    151,720.80x = 227,062.80 × 133,058.40
  4. Step 4: Simplify right side
    151,720.80x = 30,212,612,867.52
  5. Step 5: Solve for x
    x = 30,212,612,867.52/151,720.80
  6. Step 6: Final answer
    x = 199,132.97

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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.