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Finding the Fourth Proportional to 68,741.66, 103,128.89 and 24,372.29

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Solution

The fourth proportional to 68,741.66, 103,128.89 and 24,372.29 is: 36,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,741.66 : 103,128.89 = 24,372.29 : x
  2. Step 2: Convert to fraction form
    68,741.66/103,128.89 = 24,372.29/x
  3. Step 3: Cross multiply
    68,741.66x = 103,128.89 × 24,372.29
  4. Step 4: Simplify right side
    68,741.66x = 2,513,486,576.95
  5. Step 5: Solve for x
    x = 2,513,486,576.95/68,741.66
  6. Step 6: Final answer
    x = 36,564.24

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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.