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Finding the Fourth Proportional to 267,071.40, 400,607.10 and 89,519.40

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Solution

The fourth proportional to 267,071.40, 400,607.10 and 89,519.40 is: 134,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,071.40 : 400,607.10 = 89,519.40 : x
  2. Step 2: Convert to fraction form
    267,071.40/400,607.10 = 89,519.40/x
  3. Step 3: Cross multiply
    267,071.40x = 400,607.10 × 89,519.40
  4. Step 4: Simplify right side
    267,071.40x = 35,862,107,227.74
  5. Step 5: Solve for x
    x = 35,862,107,227.74/267,071.40
  6. Step 6: Final answer
    x = 134,279.10

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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.