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Finding the Fourth Proportional to 267,543.90, 401,377.41 and 90,046.17

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Solution

The fourth proportional to 267,543.90, 401,377.41 and 90,046.17 is: 135,089.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,543.90 : 401,377.41 = 90,046.17 : x
  2. Step 2: Convert to fraction form
    267,543.90/401,377.41 = 90,046.17/x
  3. Step 3: Cross multiply
    267,543.90x = 401,377.41 × 90,046.17
  4. Step 4: Simplify right side
    267,543.90x = 36,142,498,495.02
  5. Step 5: Solve for x
    x = 36,142,498,495.02/267,543.90
  6. Step 6: Final answer
    x = 135,089.97

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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.