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Finding the Fourth Proportional to 40,494.80, 60,742.20 and 36,117.20

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Solution

The fourth proportional to 40,494.80, 60,742.20 and 36,117.20 is: 54,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,494.80 : 60,742.20 = 36,117.20 : x
  2. Step 2: Convert to fraction form
    40,494.80/60,742.20 = 36,117.20/x
  3. Step 3: Cross multiply
    40,494.80x = 60,742.20 × 36,117.20
  4. Step 4: Simplify right side
    40,494.80x = 2,193,838,185.84
  5. Step 5: Solve for x
    x = 2,193,838,185.84/40,494.80
  6. Step 6: Final answer
    x = 54,175.80

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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.