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Finding the Fourth Proportional to 68,899.46, 103,252.95 and 37,241.28

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Solution

The fourth proportional to 68,899.46, 103,252.95 and 37,241.28 is: 55,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,899.46 : 103,252.95 = 37,241.28 : x
  2. Step 2: Convert to fraction form
    68,899.46/103,252.95 = 37,241.28/x
  3. Step 3: Cross multiply
    68,899.46x = 103,252.95 × 37,241.28
  4. Step 4: Simplify right side
    68,899.46x = 3,845,272,021.78
  5. Step 5: Solve for x
    x = 3,845,272,021.78/68,899.46
  6. Step 6: Final answer
    x = 55,809.90

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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.