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Finding the Fourth Proportional to 209,230.92, 288,738.88 and 113,737.62

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Solution

The fourth proportional to 209,230.92, 288,738.88 and 113,737.62 is: 156,958.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,230.92 : 288,738.88 = 113,737.62 : x
  2. Step 2: Convert to fraction form
    209,230.92/288,738.88 = 113,737.62/x
  3. Step 3: Cross multiply
    209,230.92x = 288,738.88 × 113,737.62
  4. Step 4: Simplify right side
    209,230.92x = 32,840,473,012.67
  5. Step 5: Solve for x
    x = 32,840,473,012.67/209,230.92
  6. Step 6: Final answer
    x = 156,958.03

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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.