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Finding the Fourth Proportional to 267,575.81, 401,363.71 and 80,587.31

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Solution

The fourth proportional to 267,575.81, 401,363.71 and 80,587.31 is: 120,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,575.81 : 401,363.71 = 80,587.31 : x
  2. Step 2: Convert to fraction form
    267,575.81/401,363.71 = 80,587.31/x
  3. Step 3: Cross multiply
    267,575.81x = 401,363.71 × 80,587.31
  4. Step 4: Simplify right side
    267,575.81x = 32,344,819,512.23
  5. Step 5: Solve for x
    x = 32,344,819,512.23/267,575.81
  6. Step 6: Final answer
    x = 120,880.96

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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.