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Finding the Fourth Proportional to 68,805.86, 103,219.11 and 24,428.93

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Solution

The fourth proportional to 68,805.86, 103,219.11 and 24,428.93 is: 36,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,805.86 : 103,219.11 = 24,428.93 : x
  2. Step 2: Convert to fraction form
    68,805.86/103,219.11 = 24,428.93/x
  3. Step 3: Cross multiply
    68,805.86x = 103,219.11 × 24,428.93
  4. Step 4: Simplify right side
    68,805.86x = 2,521,532,412.85
  5. Step 5: Solve for x
    x = 2,521,532,412.85/68,805.86
  6. Step 6: Final answer
    x = 36,647.06

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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.