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Finding the Fourth Proportional to 68,718.72, 103,051.44 and 24,337.20

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Solution

The fourth proportional to 68,718.72, 103,051.44 and 24,337.20 is: 36,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,718.72 : 103,051.44 = 24,337.20 : x
  2. Step 2: Convert to fraction form
    68,718.72/103,051.44 = 24,337.20/x
  3. Step 3: Cross multiply
    68,718.72x = 103,051.44 × 24,337.20
  4. Step 4: Simplify right side
    68,718.72x = 2,507,983,505.57
  5. Step 5: Solve for x
    x = 2,507,983,505.57/68,718.72
  6. Step 6: Final answer
    x = 36,496.37

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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.