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Finding the Fourth Proportional to 67,794.40, 101,691.60 and 39,703.60

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Solution

The fourth proportional to 67,794.40, 101,691.60 and 39,703.60 is: 59,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,794.40 : 101,691.60 = 39,703.60 : x
  2. Step 2: Convert to fraction form
    67,794.40/101,691.60 = 39,703.60/x
  3. Step 3: Cross multiply
    67,794.40x = 101,691.60 × 39,703.60
  4. Step 4: Simplify right side
    67,794.40x = 4,037,522,609.76
  5. Step 5: Solve for x
    x = 4,037,522,609.76/67,794.40
  6. Step 6: Final answer
    x = 59,555.40

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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.