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Finding the Fourth Proportional to 71,230.32, 106,613.69 and 52,502.85

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Solution

The fourth proportional to 71,230.32, 106,613.69 and 52,502.85 is: 78,583.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,230.32 : 106,613.69 = 52,502.85 : x
  2. Step 2: Convert to fraction form
    71,230.32/106,613.69 = 52,502.85/x
  3. Step 3: Cross multiply
    71,230.32x = 106,613.69 × 52,502.85
  4. Step 4: Simplify right side
    71,230.32x = 5,597,522,311.50
  5. Step 5: Solve for x
    x = 5,597,522,311.50/71,230.32
  6. Step 6: Final answer
    x = 78,583.42

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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.