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Finding the Fourth Proportional to 68,706.80, 103,049.40 and 24,327.20

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Solution

The fourth proportional to 68,706.80, 103,049.40 and 24,327.20 is: 36,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.80 : 103,049.40 = 24,327.20 : x
  2. Step 2: Convert to fraction form
    68,706.80/103,049.40 = 24,327.20/x
  3. Step 3: Cross multiply
    68,706.80x = 103,049.40 × 24,327.20
  4. Step 4: Simplify right side
    68,706.80x = 2,506,903,363.68
  5. Step 5: Solve for x
    x = 2,506,903,363.68/68,706.80
  6. Step 6: Final answer
    x = 36,486.98

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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.