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Finding the Fourth Proportional to 74,132.70, 111,199.05 and 32,579.70

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Solution

The fourth proportional to 74,132.70, 111,199.05 and 32,579.70 is: 48,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,132.70 : 111,199.05 = 32,579.70 : x
  2. Step 2: Convert to fraction form
    74,132.70/111,199.05 = 32,579.70/x
  3. Step 3: Cross multiply
    74,132.70x = 111,199.05 × 32,579.70
  4. Step 4: Simplify right side
    74,132.70x = 3,622,831,689.29
  5. Step 5: Solve for x
    x = 3,622,831,689.29/74,132.70
  6. Step 6: Final answer
    x = 48,869.55

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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.