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Finding the Fourth Proportional to 267,385.61, 400,808.53 and 167,615.87

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Solution

The fourth proportional to 267,385.61, 400,808.53 and 167,615.87 is: 251,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,385.61 : 400,808.53 = 167,615.87 : x
  2. Step 2: Convert to fraction form
    267,385.61/400,808.53 = 167,615.87/x
  3. Step 3: Cross multiply
    267,385.61x = 400,808.53 × 167,615.87
  4. Step 4: Simplify right side
    267,385.61x = 67,181,870,591.47
  5. Step 5: Solve for x
    x = 67,181,870,591.47/267,385.61
  6. Step 6: Final answer
    x = 251,254.62

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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.