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Finding the Fourth Proportional to 92,424.80, 138,616.72 and 25,847.04

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Solution

The fourth proportional to 92,424.80, 138,616.72 and 25,847.04 is: 38,764.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,424.80 : 138,616.72 = 25,847.04 : x
  2. Step 2: Convert to fraction form
    92,424.80/138,616.72 = 25,847.04/x
  3. Step 3: Cross multiply
    92,424.80x = 138,616.72 × 25,847.04
  4. Step 4: Simplify right side
    92,424.80x = 3,582,831,906.51
  5. Step 5: Solve for x
    x = 3,582,831,906.51/92,424.80
  6. Step 6: Final answer
    x = 38,764.83

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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.