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Finding the Fourth Proportional to 317,872.80, 476,566.20 and 160,214.40

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Solution

The fourth proportional to 317,872.80, 476,566.20 and 160,214.40 is: 240,199.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,872.80 : 476,566.20 = 160,214.40 : x
  2. Step 2: Convert to fraction form
    317,872.80/476,566.20 = 160,214.40/x
  3. Step 3: Cross multiply
    317,872.80x = 476,566.20 × 160,214.40
  4. Step 4: Simplify right side
    317,872.80x = 76,352,767,793.28
  5. Step 5: Solve for x
    x = 76,352,767,793.28/317,872.80
  6. Step 6: Final answer
    x = 240,199.12

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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.