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Finding the Fourth Proportional to 267,686.58, 401,589.28 and 80,684.58

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Solution

The fourth proportional to 267,686.58, 401,589.28 and 80,684.58 is: 121,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,686.58 : 401,589.28 = 80,684.58 : x
  2. Step 2: Convert to fraction form
    267,686.58/401,589.28 = 80,684.58/x
  3. Step 3: Cross multiply
    267,686.58x = 401,589.28 × 80,684.58
  4. Step 4: Simplify right side
    267,686.58x = 32,402,062,389.30
  5. Step 5: Solve for x
    x = 32,402,062,389.30/267,686.58
  6. Step 6: Final answer
    x = 121,044.78

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1.5x scale

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.