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Finding the Fourth Proportional to 73,963.40, 110,872.20 and 36,492.80

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Solution

The fourth proportional to 73,963.40, 110,872.20 and 36,492.80 is: 54,703.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,963.40 : 110,872.20 = 36,492.80 : x
  2. Step 2: Convert to fraction form
    73,963.40/110,872.20 = 36,492.80/x
  3. Step 3: Cross multiply
    73,963.40x = 110,872.20 × 36,492.80
  4. Step 4: Simplify right side
    73,963.40x = 4,046,037,020.16
  5. Step 5: Solve for x
    x = 4,046,037,020.16/73,963.40
  6. Step 6: Final answer
    x = 54,703.23

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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.