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Finding the Fourth Proportional to 123,425.81, 185,100.43 and 44,529.78

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Solution

The fourth proportional to 123,425.81, 185,100.43 and 44,529.78 is: 66,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,425.81 : 185,100.43 = 44,529.78 : x
  2. Step 2: Convert to fraction form
    123,425.81/185,100.43 = 44,529.78/x
  3. Step 3: Cross multiply
    123,425.81x = 185,100.43 × 44,529.78
  4. Step 4: Simplify right side
    123,425.81x = 8,242,481,425.81
  5. Step 5: Solve for x
    x = 8,242,481,425.81/123,425.81
  6. Step 6: Final answer
    x = 66,780.86

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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.