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Finding the Fourth Proportional to 100,049.80, 149,820.69 and 60,043.60

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Solution

The fourth proportional to 100,049.80, 149,820.69 and 60,043.60 is: 89,912.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,049.80 : 149,820.69 = 60,043.60 : x
  2. Step 2: Convert to fraction form
    100,049.80/149,820.69 = 60,043.60/x
  3. Step 3: Cross multiply
    100,049.80x = 149,820.69 × 60,043.60
  4. Step 4: Simplify right side
    100,049.80x = 8,995,773,582.08
  5. Step 5: Solve for x
    x = 8,995,773,582.08/100,049.80
  6. Step 6: Final answer
    x = 89,912.96

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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.