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Finding the Fourth Proportional to 123,437.89, 185,210.32 and 43,532.96

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Solution

The fourth proportional to 123,437.89, 185,210.32 and 43,532.96 is: 65,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,437.89 : 185,210.32 = 43,532.96 : x
  2. Step 2: Convert to fraction form
    123,437.89/185,210.32 = 43,532.96/x
  3. Step 3: Cross multiply
    123,437.89x = 185,210.32 × 43,532.96
  4. Step 4: Simplify right side
    123,437.89x = 8,062,753,452.15
  5. Step 5: Solve for x
    x = 8,062,753,452.15/123,437.89
  6. Step 6: Final answer
    x = 65,318.30

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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.