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Finding the Fourth Proportional to 267,407.63, 400,835.03 and 89,854.82

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Solution

The fourth proportional to 267,407.63, 400,835.03 and 89,854.82 is: 134,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,407.63 : 400,835.03 = 89,854.82 : x
  2. Step 2: Convert to fraction form
    267,407.63/400,835.03 = 89,854.82/x
  3. Step 3: Cross multiply
    267,407.63x = 400,835.03 × 89,854.82
  4. Step 4: Simplify right side
    267,407.63x = 36,016,957,016.90
  5. Step 5: Solve for x
    x = 36,016,957,016.90/267,407.63
  6. Step 6: Final answer
    x = 134,689.34

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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.