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Finding the Fourth Proportional to 73,432.20, 110,151.90 and 38,440.20

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Solution

The fourth proportional to 73,432.20, 110,151.90 and 38,440.20 is: 57,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,432.20 : 110,151.90 = 38,440.20 : x
  2. Step 2: Convert to fraction form
    73,432.20/110,151.90 = 38,440.20/x
  3. Step 3: Cross multiply
    73,432.20x = 110,151.90 × 38,440.20
  4. Step 4: Simplify right side
    73,432.20x = 4,234,261,066.38
  5. Step 5: Solve for x
    x = 4,234,261,066.38/73,432.20
  6. Step 6: Final answer
    x = 57,662.18

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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.