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Finding the Fourth Proportional to 44,179.40, 66,138.90 and 29,158.81

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Solution

The fourth proportional to 44,179.40, 66,138.90 and 29,158.81 is: 43,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,179.40 : 66,138.90 = 29,158.81 : x
  2. Step 2: Convert to fraction form
    44,179.40/66,138.90 = 29,158.81/x
  3. Step 3: Cross multiply
    44,179.40x = 66,138.90 × 29,158.81
  4. Step 4: Simplify right side
    44,179.40x = 1,928,531,618.71
  5. Step 5: Solve for x
    x = 1,928,531,618.71/44,179.40
  6. Step 6: Final answer
    x = 43,652.28

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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.