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Finding the Fourth Proportional to 208,337.60, 312,414.24 and 60,605.12

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Solution

The fourth proportional to 208,337.60, 312,414.24 and 60,605.12 is: 90,880.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,337.60 : 312,414.24 = 60,605.12 : x
  2. Step 2: Convert to fraction form
    208,337.60/312,414.24 = 60,605.12/x
  3. Step 3: Cross multiply
    208,337.60x = 312,414.24 × 60,605.12
  4. Step 4: Simplify right side
    208,337.60x = 18,933,902,504.91
  5. Step 5: Solve for x
    x = 18,933,902,504.91/208,337.60
  6. Step 6: Final answer
    x = 90,880.87

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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.