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Finding the Fourth Proportional to 262,132.20, 393,489.90 and 144,034.20

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Solution

The fourth proportional to 262,132.20, 393,489.90 and 144,034.20 is: 216,211.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,132.20 : 393,489.90 = 144,034.20 : x
  2. Step 2: Convert to fraction form
    262,132.20/393,489.90 = 144,034.20/x
  3. Step 3: Cross multiply
    262,132.20x = 393,489.90 × 144,034.20
  4. Step 4: Simplify right side
    262,132.20x = 56,676,002,954.58
  5. Step 5: Solve for x
    x = 56,676,002,954.58/262,132.20
  6. Step 6: Final answer
    x = 216,211.53

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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.