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Finding the Fourth Proportional to 267,397.92, 401,051.76 and 125,258.40

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Solution

The fourth proportional to 267,397.92, 401,051.76 and 125,258.40 is: 187,866.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,397.92 : 401,051.76 = 125,258.40 : x
  2. Step 2: Convert to fraction form
    267,397.92/401,051.76 = 125,258.40/x
  3. Step 3: Cross multiply
    267,397.92x = 401,051.76 × 125,258.40
  4. Step 4: Simplify right side
    267,397.92x = 50,235,101,774.78
  5. Step 5: Solve for x
    x = 50,235,101,774.78/267,397.92
  6. Step 6: Final answer
    x = 187,866.46

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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.