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Finding the Fourth Proportional to 294,843.20, 442,264.80 and 73,227.20

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Solution

The fourth proportional to 294,843.20, 442,264.80 and 73,227.20 is: 109,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,843.20 : 442,264.80 = 73,227.20 : x
  2. Step 2: Convert to fraction form
    294,843.20/442,264.80 = 73,227.20/x
  3. Step 3: Cross multiply
    294,843.20x = 442,264.80 × 73,227.20
  4. Step 4: Simplify right side
    294,843.20x = 32,385,812,962.56
  5. Step 5: Solve for x
    x = 32,385,812,962.56/294,843.20
  6. Step 6: Final answer
    x = 109,840.80

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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.