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Finding the Fourth Proportional to 56,869.57, 85,235.17 and 40,234.40

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Solution

The fourth proportional to 56,869.57, 85,235.17 and 40,234.40 is: 60,302.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,869.57 : 85,235.17 = 40,234.40 : x
  2. Step 2: Convert to fraction form
    56,869.57/85,235.17 = 40,234.40/x
  3. Step 3: Cross multiply
    56,869.57x = 85,235.17 × 40,234.40
  4. Step 4: Simplify right side
    56,869.57x = 3,429,385,923.85
  5. Step 5: Solve for x
    x = 3,429,385,923.85/56,869.57
  6. Step 6: Final answer
    x = 60,302.65

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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.