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Finding the Fourth Proportional to 73,718.10, 110,249.10 and 61,908.30

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Solution

The fourth proportional to 73,718.10, 110,249.10 and 61,908.30 is: 92,586.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,718.10 : 110,249.10 = 61,908.30 : x
  2. Step 2: Convert to fraction form
    73,718.10/110,249.10 = 61,908.30/x
  3. Step 3: Cross multiply
    73,718.10x = 110,249.10 × 61,908.30
  4. Step 4: Simplify right side
    73,718.10x = 6,825,334,357.53
  5. Step 5: Solve for x
    x = 6,825,334,357.53/73,718.10
  6. Step 6: Final answer
    x = 92,586.95

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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.