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Finding the Fourth Proportional to 267,278.67, 400,913.72 and 64,876.44

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Solution

The fourth proportional to 267,278.67, 400,913.72 and 64,876.44 is: 97,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,278.67 : 400,913.72 = 64,876.44 : x
  2. Step 2: Convert to fraction form
    267,278.67/400,913.72 = 64,876.44/x
  3. Step 3: Cross multiply
    267,278.67x = 400,913.72 × 64,876.44
  4. Step 4: Simplify right side
    267,278.67x = 26,009,853,374.85
  5. Step 5: Solve for x
    x = 26,009,853,374.85/267,278.67
  6. Step 6: Final answer
    x = 97,313.61

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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.