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Finding the Fourth Proportional to 267,041.63, 400,575.38 and 87,126.71

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Solution

The fourth proportional to 267,041.63, 400,575.38 and 87,126.71 is: 130,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,041.63 : 400,575.38 = 87,126.71 : x
  2. Step 2: Convert to fraction form
    267,041.63/400,575.38 = 87,126.71/x
  3. Step 3: Cross multiply
    267,041.63x = 400,575.38 × 87,126.71
  4. Step 4: Simplify right side
    267,041.63x = 34,900,812,527.89
  5. Step 5: Solve for x
    x = 34,900,812,527.89/267,041.63
  6. Step 6: Final answer
    x = 130,694.28

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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.