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Finding the Fourth Proportional to 91,543.44, 126,230.04 and 79,500.48

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Solution

The fourth proportional to 91,543.44, 126,230.04 and 79,500.48 is: 109,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,543.44 : 126,230.04 = 79,500.48 : x
  2. Step 2: Convert to fraction form
    91,543.44/126,230.04 = 79,500.48/x
  3. Step 3: Cross multiply
    91,543.44x = 126,230.04 × 79,500.48
  4. Step 4: Simplify right side
    91,543.44x = 10,035,348,770.42
  5. Step 5: Solve for x
    x = 10,035,348,770.42/91,543.44
  6. Step 6: Final answer
    x = 109,623.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.