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Finding the Fourth Proportional to 267,107.60, 400,617.66 and 98,706.78

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Solution

The fourth proportional to 267,107.60, 400,617.66 and 98,706.78 is: 148,044.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,107.60 : 400,617.66 = 98,706.78 : x
  2. Step 2: Convert to fraction form
    267,107.60/400,617.66 = 98,706.78/x
  3. Step 3: Cross multiply
    267,107.60x = 400,617.66 × 98,706.78
  4. Step 4: Simplify right side
    267,107.60x = 39,543,679,229.73
  5. Step 5: Solve for x
    x = 39,543,679,229.73/267,107.60
  6. Step 6: Final answer
    x = 148,044.01

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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.