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Finding the Fourth Proportional to 221,482.60, 332,223.90 and 132,690.40

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Solution

The fourth proportional to 221,482.60, 332,223.90 and 132,690.40 is: 199,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,482.60 : 332,223.90 = 132,690.40 : x
  2. Step 2: Convert to fraction form
    221,482.60/332,223.90 = 132,690.40/x
  3. Step 3: Cross multiply
    221,482.60x = 332,223.90 × 132,690.40
  4. Step 4: Simplify right side
    221,482.60x = 44,082,922,180.56
  5. Step 5: Solve for x
    x = 44,082,922,180.56/221,482.60
  6. Step 6: Final answer
    x = 199,035.60

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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.