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Finding the Fourth Proportional to 68,079.36, 102,068.82 and 49,073.52

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Solution

The fourth proportional to 68,079.36, 102,068.82 and 49,073.52 is: 73,574.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,079.36 : 102,068.82 = 49,073.52 : x
  2. Step 2: Convert to fraction form
    68,079.36/102,068.82 = 49,073.52/x
  3. Step 3: Cross multiply
    68,079.36x = 102,068.82 × 49,073.52
  4. Step 4: Simplify right side
    68,079.36x = 5,008,876,279.65
  5. Step 5: Solve for x
    x = 5,008,876,279.65/68,079.36
  6. Step 6: Final answer
    x = 73,574.08

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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.