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Finding the Fourth Proportional to 71,999.40, 107,999.10 and 60,594.60

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Solution

The fourth proportional to 71,999.40, 107,999.10 and 60,594.60 is: 90,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,999.40 : 107,999.10 = 60,594.60 : x
  2. Step 2: Convert to fraction form
    71,999.40/107,999.10 = 60,594.60/x
  3. Step 3: Cross multiply
    71,999.40x = 107,999.10 × 60,594.60
  4. Step 4: Simplify right side
    71,999.40x = 6,544,162,264.86
  5. Step 5: Solve for x
    x = 6,544,162,264.86/71,999.40
  6. Step 6: Final answer
    x = 90,891.90

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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.