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Finding the Fourth Proportional to 68,779.59, 103,165.11 and 24,400.50

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Solution

The fourth proportional to 68,779.59, 103,165.11 and 24,400.50 is: 36,599.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,779.59 : 103,165.11 = 24,400.50 : x
  2. Step 2: Convert to fraction form
    68,779.59/103,165.11 = 24,400.50/x
  3. Step 3: Cross multiply
    68,779.59x = 103,165.11 × 24,400.50
  4. Step 4: Simplify right side
    68,779.59x = 2,517,280,266.56
  5. Step 5: Solve for x
    x = 2,517,280,266.56/68,779.59
  6. Step 6: Final answer
    x = 36,599.23

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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.