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Finding the Fourth Proportional to 57,230.20, 85,870.90 and 26,049.40

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Solution

The fourth proportional to 57,230.20, 85,870.90 and 26,049.40 is: 39,085.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,230.20 : 85,870.90 = 26,049.40 : x
  2. Step 2: Convert to fraction form
    57,230.20/85,870.90 = 26,049.40/x
  3. Step 3: Cross multiply
    57,230.20x = 85,870.90 × 26,049.40
  4. Step 4: Simplify right side
    57,230.20x = 2,236,885,422.46
  5. Step 5: Solve for x
    x = 2,236,885,422.46/57,230.20
  6. Step 6: Final answer
    x = 39,085.75

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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.