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Finding the Fourth Proportional to 144,059.08, 198,793.48 and 80,400.96

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Solution

The fourth proportional to 144,059.08, 198,793.48 and 80,400.96 is: 110,948.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,059.08 : 198,793.48 = 80,400.96 : x
  2. Step 2: Convert to fraction form
    144,059.08/198,793.48 = 80,400.96/x
  3. Step 3: Cross multiply
    144,059.08x = 198,793.48 × 80,400.96
  4. Step 4: Simplify right side
    144,059.08x = 15,983,186,633.74
  5. Step 5: Solve for x
    x = 15,983,186,633.74/144,059.08
  6. Step 6: Final answer
    x = 110,948.83

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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.