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Finding the Fourth Proportional to 68,765.98, 103,187.13 and 37,175.26

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Solution

The fourth proportional to 68,765.98, 103,187.13 and 37,175.26 is: 55,783.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,765.98 : 103,187.13 = 37,175.26 : x
  2. Step 2: Convert to fraction form
    68,765.98/103,187.13 = 37,175.26/x
  3. Step 3: Cross multiply
    68,765.98x = 103,187.13 × 37,175.26
  4. Step 4: Simplify right side
    68,765.98x = 3,836,008,386.40
  5. Step 5: Solve for x
    x = 3,836,008,386.40/68,765.98
  6. Step 6: Final answer
    x = 55,783.52

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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.