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Finding the Fourth Proportional to 267,171.83, 400,724.67 and 98,688.42

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Solution

The fourth proportional to 267,171.83, 400,724.67 and 98,688.42 is: 148,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,171.83 : 400,724.67 = 98,688.42 : x
  2. Step 2: Convert to fraction form
    267,171.83/400,724.67 = 98,688.42/x
  3. Step 3: Cross multiply
    267,171.83x = 400,724.67 × 98,688.42
  4. Step 4: Simplify right side
    267,171.83x = 39,546,884,537.32
  5. Step 5: Solve for x
    x = 39,546,884,537.32/267,171.83
  6. Step 6: Final answer
    x = 148,020.42

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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.