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Finding the Fourth Proportional to 123,478.39, 185,107.59 and 44,575.06

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Solution

The fourth proportional to 123,478.39, 185,107.59 and 44,575.06 is: 66,822.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,478.39 : 185,107.59 = 44,575.06 : x
  2. Step 2: Convert to fraction form
    123,478.39/185,107.59 = 44,575.06/x
  3. Step 3: Cross multiply
    123,478.39x = 185,107.59 × 44,575.06
  4. Step 4: Simplify right side
    123,478.39x = 8,251,181,930.71
  5. Step 5: Solve for x
    x = 8,251,181,930.71/123,478.39
  6. Step 6: Final answer
    x = 66,822.88

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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.