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Finding the Fourth Proportional to 267,029.28, 400,101.48 and 187,756.20

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Solution

The fourth proportional to 267,029.28, 400,101.48 and 187,756.20 is: 281,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,029.28 : 400,101.48 = 187,756.20 : x
  2. Step 2: Convert to fraction form
    267,029.28/400,101.48 = 187,756.20/x
  3. Step 3: Cross multiply
    267,029.28x = 400,101.48 × 187,756.20
  4. Step 4: Simplify right side
    267,029.28x = 75,121,533,499.18
  5. Step 5: Solve for x
    x = 75,121,533,499.18/267,029.28
  6. Step 6: Final answer
    x = 281,323.21

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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.