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Finding the Fourth Proportional to 242,316.80, 363,475.20 and 191,772.80

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Solution

The fourth proportional to 242,316.80, 363,475.20 and 191,772.80 is: 287,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,316.80 : 363,475.20 = 191,772.80 : x
  2. Step 2: Convert to fraction form
    242,316.80/363,475.20 = 191,772.80/x
  3. Step 3: Cross multiply
    242,316.80x = 363,475.20 × 191,772.80
  4. Step 4: Simplify right side
    242,316.80x = 69,704,656,834.56
  5. Step 5: Solve for x
    x = 69,704,656,834.56/242,316.80
  6. Step 6: Final answer
    x = 287,659.20

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1.5x scale

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.