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Finding the Fourth Proportional to 73,764.05, 110,646.08 and 68,061.65

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Solution

The fourth proportional to 73,764.05, 110,646.08 and 68,061.65 is: 102,092.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,764.05 : 110,646.08 = 68,061.65 : x
  2. Step 2: Convert to fraction form
    73,764.05/110,646.08 = 68,061.65/x
  3. Step 3: Cross multiply
    73,764.05x = 110,646.08 × 68,061.65
  4. Step 4: Simplify right side
    73,764.05x = 7,530,754,430.52
  5. Step 5: Solve for x
    x = 7,530,754,430.52/73,764.05
  6. Step 6: Final answer
    x = 102,092.48

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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.