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Finding the Fourth Proportional to 159,062.73, 219,507.03 and 91,080.74

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Solution

The fourth proportional to 159,062.73, 219,507.03 and 91,080.74 is: 125,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,062.73 : 219,507.03 = 91,080.74 : x
  2. Step 2: Convert to fraction form
    159,062.73/219,507.03 = 91,080.74/x
  3. Step 3: Cross multiply
    159,062.73x = 219,507.03 × 91,080.74
  4. Step 4: Simplify right side
    159,062.73x = 19,992,861,630.07
  5. Step 5: Solve for x
    x = 19,992,861,630.07/159,062.73
  6. Step 6: Final answer
    x = 125,691.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.