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Finding the Fourth Proportional to 217,812.20, 326,718.30 and 182,820.20

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Solution

The fourth proportional to 217,812.20, 326,718.30 and 182,820.20 is: 274,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,812.20 : 326,718.30 = 182,820.20 : x
  2. Step 2: Convert to fraction form
    217,812.20/326,718.30 = 182,820.20/x
  3. Step 3: Cross multiply
    217,812.20x = 326,718.30 × 182,820.20
  4. Step 4: Simplify right side
    217,812.20x = 59,730,704,949.66
  5. Step 5: Solve for x
    x = 59,730,704,949.66/217,812.20
  6. Step 6: Final answer
    x = 274,230.30

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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.