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Finding the Fourth Proportional to 75,086.20, 112,337.70 and 48,842.20

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Solution

The fourth proportional to 75,086.20, 112,337.70 and 48,842.20 is: 73,073.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,086.20 : 112,337.70 = 48,842.20 : x
  2. Step 2: Convert to fraction form
    75,086.20/112,337.70 = 48,842.20/x
  3. Step 3: Cross multiply
    75,086.20x = 112,337.70 × 48,842.20
  4. Step 4: Simplify right side
    75,086.20x = 5,486,820,410.94
  5. Step 5: Solve for x
    x = 5,486,820,410.94/75,086.20
  6. Step 6: Final answer
    x = 73,073.62

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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.