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Finding the Fourth Proportional to 250,613.28, 375,989.31 and 115,718.52

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Solution

The fourth proportional to 250,613.28, 375,989.31 and 115,718.52 is: 173,609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,613.28 : 375,989.31 = 115,718.52 : x
  2. Step 2: Convert to fraction form
    250,613.28/375,989.31 = 115,718.52/x
  3. Step 3: Cross multiply
    250,613.28x = 375,989.31 × 115,718.52
  4. Step 4: Simplify right side
    250,613.28x = 43,508,926,489.02
  5. Step 5: Solve for x
    x = 43,508,926,489.02/250,613.28
  6. Step 6: Final answer
    x = 173,609.82

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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.