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Finding the Fourth Proportional to 217,957.74, 327,062.97 and 91,588.02

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Solution

The fourth proportional to 217,957.74, 327,062.97 and 91,588.02 is: 137,435.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,957.74 : 327,062.97 = 91,588.02 : x
  2. Step 2: Convert to fraction form
    217,957.74/327,062.97 = 91,588.02/x
  3. Step 3: Cross multiply
    217,957.74x = 327,062.97 × 91,588.02
  4. Step 4: Simplify right side
    217,957.74x = 29,955,049,837.62
  5. Step 5: Solve for x
    x = 29,955,049,837.62/217,957.74
  6. Step 6: Final answer
    x = 137,435.13

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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.