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Finding the Fourth Proportional to 124,147.10, 185,861.61 and 111,327.64

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Solution

The fourth proportional to 124,147.10, 185,861.61 and 111,327.64 is: 166,669.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,147.10 : 185,861.61 = 111,327.64 : x
  2. Step 2: Convert to fraction form
    124,147.10/185,861.61 = 111,327.64/x
  3. Step 3: Cross multiply
    124,147.10x = 185,861.61 × 111,327.64
  4. Step 4: Simplify right side
    124,147.10x = 20,691,533,943.25
  5. Step 5: Solve for x
    x = 20,691,533,943.25/124,147.10
  6. Step 6: Final answer
    x = 166,669.49

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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.