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Finding the Fourth Proportional to 67,319.80, 100,979.70 and 32,241.40

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Solution

The fourth proportional to 67,319.80, 100,979.70 and 32,241.40 is: 48,362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,319.80 : 100,979.70 = 32,241.40 : x
  2. Step 2: Convert to fraction form
    67,319.80/100,979.70 = 32,241.40/x
  3. Step 3: Cross multiply
    67,319.80x = 100,979.70 × 32,241.40
  4. Step 4: Simplify right side
    67,319.80x = 3,255,726,899.58
  5. Step 5: Solve for x
    x = 3,255,726,899.58/67,319.80
  6. Step 6: Final answer
    x = 48,362.10

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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.