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Finding the Fourth Proportional to 202,452.20, 303,678.30 and 191,565.80

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Solution

The fourth proportional to 202,452.20, 303,678.30 and 191,565.80 is: 287,348.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,452.20 : 303,678.30 = 191,565.80 : x
  2. Step 2: Convert to fraction form
    202,452.20/303,678.30 = 191,565.80/x
  3. Step 3: Cross multiply
    202,452.20x = 303,678.30 × 191,565.80
  4. Step 4: Simplify right side
    202,452.20x = 58,174,376,482.14
  5. Step 5: Solve for x
    x = 58,174,376,482.14/202,452.20
  6. Step 6: Final answer
    x = 287,348.70

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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.