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Finding the Fourth Proportional to 267,202.48, 400,810.20 and 89,715.28

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Solution

The fourth proportional to 267,202.48, 400,810.20 and 89,715.28 is: 134,575.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,202.48 : 400,810.20 = 89,715.28 : x
  2. Step 2: Convert to fraction form
    267,202.48/400,810.20 = 89,715.28/x
  3. Step 3: Cross multiply
    267,202.48x = 400,810.20 × 89,715.28
  4. Step 4: Simplify right side
    267,202.48x = 35,958,799,319.86
  5. Step 5: Solve for x
    x = 35,958,799,319.86/267,202.48
  6. Step 6: Final answer
    x = 134,575.10

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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.