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Finding the Fourth Proportional to 159,604.96, 220,234.12 and 91,624.90

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Solution

The fourth proportional to 159,604.96, 220,234.12 and 91,624.90 is: 126,430.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,604.96 : 220,234.12 = 91,624.90 : x
  2. Step 2: Convert to fraction form
    159,604.96/220,234.12 = 91,624.90/x
  3. Step 3: Cross multiply
    159,604.96x = 220,234.12 × 91,624.90
  4. Step 4: Simplify right side
    159,604.96x = 20,178,929,221.59
  5. Step 5: Solve for x
    x = 20,178,929,221.59/159,604.96
  6. Step 6: Final answer
    x = 126,430.46

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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.