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Finding the Fourth Proportional to 267,031.28, 400,104.48 and 187,758.20

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Solution

The fourth proportional to 267,031.28, 400,104.48 and 187,758.20 is: 281,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,031.28 : 400,104.48 = 187,758.20 : x
  2. Step 2: Convert to fraction form
    267,031.28/400,104.48 = 187,758.20/x
  3. Step 3: Cross multiply
    267,031.28x = 400,104.48 × 187,758.20
  4. Step 4: Simplify right side
    267,031.28x = 75,122,896,976.74
  5. Step 5: Solve for x
    x = 75,122,896,976.74/267,031.28
  6. Step 6: Final answer
    x = 281,326.21

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1.5x scale

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.