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Finding the Fourth Proportional to 267,207.72, 400,831.04 and 89,713.24

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Solution

The fourth proportional to 267,207.72, 400,831.04 and 89,713.24 is: 134,576.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,207.72 : 400,831.04 = 89,713.24 : x
  2. Step 2: Convert to fraction form
    267,207.72/400,831.04 = 89,713.24/x
  3. Step 3: Cross multiply
    267,207.72x = 400,831.04 × 89,713.24
  4. Step 4: Simplify right side
    267,207.72x = 35,959,851,290.97
  5. Step 5: Solve for x
    x = 35,959,851,290.97/267,207.72
  6. Step 6: Final answer
    x = 134,576.39

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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.