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Finding the Fourth Proportional to 68,671.69, 103,045.80 and 37,081.08

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Solution

The fourth proportional to 68,671.69, 103,045.80 and 37,081.08 is: 55,642.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,671.69 : 103,045.80 = 37,081.08 : x
  2. Step 2: Convert to fraction form
    68,671.69/103,045.80 = 37,081.08/x
  3. Step 3: Cross multiply
    68,671.69x = 103,045.80 × 37,081.08
  4. Step 4: Simplify right side
    68,671.69x = 3,821,049,553.46
  5. Step 5: Solve for x
    x = 3,821,049,553.46/68,671.69
  6. Step 6: Final answer
    x = 55,642.28

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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.