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Finding the Fourth Proportional to 45,384.80, 68,077.20 and 32,943.20

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Solution

The fourth proportional to 45,384.80, 68,077.20 and 32,943.20 is: 49,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,384.80 : 68,077.20 = 32,943.20 : x
  2. Step 2: Convert to fraction form
    45,384.80/68,077.20 = 32,943.20/x
  3. Step 3: Cross multiply
    45,384.80x = 68,077.20 × 32,943.20
  4. Step 4: Simplify right side
    45,384.80x = 2,242,680,815.04
  5. Step 5: Solve for x
    x = 2,242,680,815.04/45,384.80
  6. Step 6: Final answer
    x = 49,414.80

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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.