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Finding the Fourth Proportional to 267,139.14, 400,904.73 and 215,176.02

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Solution

The fourth proportional to 267,139.14, 400,904.73 and 215,176.02 is: 322,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,139.14 : 400,904.73 = 215,176.02 : x
  2. Step 2: Convert to fraction form
    267,139.14/400,904.73 = 215,176.02/x
  3. Step 3: Cross multiply
    267,139.14x = 400,904.73 × 215,176.02
  4. Step 4: Simplify right side
    267,139.14x = 86,265,084,200.57
  5. Step 5: Solve for x
    x = 86,265,084,200.57/267,139.14
  6. Step 6: Final answer
    x = 322,921.92

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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.