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Finding the Fourth Proportional to 73,244.70, 109,737.45 and 68,579.10

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Solution

The fourth proportional to 73,244.70, 109,737.45 and 68,579.10 is: 102,747.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,244.70 : 109,737.45 = 68,579.10 : x
  2. Step 2: Convert to fraction form
    73,244.70/109,737.45 = 68,579.10/x
  3. Step 3: Cross multiply
    73,244.70x = 109,737.45 × 68,579.10
  4. Step 4: Simplify right side
    73,244.70x = 7,525,695,557.30
  5. Step 5: Solve for x
    x = 7,525,695,557.30/73,244.70
  6. Step 6: Final answer
    x = 102,747.31

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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.