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Finding the Fourth Proportional to 48,963.20, 73,444.80 and 34,140.80

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Solution

The fourth proportional to 48,963.20, 73,444.80 and 34,140.80 is: 51,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,963.20 : 73,444.80 = 34,140.80 : x
  2. Step 2: Convert to fraction form
    48,963.20/73,444.80 = 34,140.80/x
  3. Step 3: Cross multiply
    48,963.20x = 73,444.80 × 34,140.80
  4. Step 4: Simplify right side
    48,963.20x = 2,507,464,227.84
  5. Step 5: Solve for x
    x = 2,507,464,227.84/48,963.20
  6. Step 6: Final answer
    x = 51,211.20

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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.