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Finding the Fourth Proportional to 60,221.20, 90,331.80 and 44,669.20

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Solution

The fourth proportional to 60,221.20, 90,331.80 and 44,669.20 is: 67,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,221.20 : 90,331.80 = 44,669.20 : x
  2. Step 2: Convert to fraction form
    60,221.20/90,331.80 = 44,669.20/x
  3. Step 3: Cross multiply
    60,221.20x = 90,331.80 × 44,669.20
  4. Step 4: Simplify right side
    60,221.20x = 4,035,049,240.56
  5. Step 5: Solve for x
    x = 4,035,049,240.56/60,221.20
  6. Step 6: Final answer
    x = 67,003.80

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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.