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Finding the Fourth Proportional to 73,204.80, 109,807.20 and 49,876.80

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Solution

The fourth proportional to 73,204.80, 109,807.20 and 49,876.80 is: 74,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,204.80 : 109,807.20 = 49,876.80 : x
  2. Step 2: Convert to fraction form
    73,204.80/109,807.20 = 49,876.80/x
  3. Step 3: Cross multiply
    73,204.80x = 109,807.20 × 49,876.80
  4. Step 4: Simplify right side
    73,204.80x = 5,476,831,752.96
  5. Step 5: Solve for x
    x = 5,476,831,752.96/73,204.80
  6. Step 6: Final answer
    x = 74,815.20

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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.