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Finding the Fourth Proportional to 317,856.80, 476,542.20 and 160,198.40

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Solution

The fourth proportional to 317,856.80, 476,542.20 and 160,198.40 is: 240,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,856.80 : 476,542.20 = 160,198.40 : x
  2. Step 2: Convert to fraction form
    317,856.80/476,542.20 = 160,198.40/x
  3. Step 3: Cross multiply
    317,856.80x = 476,542.20 × 160,198.40
  4. Step 4: Simplify right side
    317,856.80x = 76,341,297,972.48
  5. Step 5: Solve for x
    x = 76,341,297,972.48/317,856.80
  6. Step 6: Final answer
    x = 240,175.13

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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.