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Finding the Fourth Proportional to 74,462.60, 111,629.10 and 44,892.20

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Solution

The fourth proportional to 74,462.60, 111,629.10 and 44,892.20 is: 67,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,462.60 : 111,629.10 = 44,892.20 : x
  2. Step 2: Convert to fraction form
    74,462.60/111,629.10 = 44,892.20/x
  3. Step 3: Cross multiply
    74,462.60x = 111,629.10 × 44,892.20
  4. Step 4: Simplify right side
    74,462.60x = 5,011,275,883.02
  5. Step 5: Solve for x
    x = 5,011,275,883.02/74,462.60
  6. Step 6: Final answer
    x = 67,299.23

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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.