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Finding the Fourth Proportional to 123,620.88, 185,438.70 and 34,881.96

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Solution

The fourth proportional to 123,620.88, 185,438.70 and 34,881.96 is: 52,325.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,620.88 : 185,438.70 = 34,881.96 : x
  2. Step 2: Convert to fraction form
    123,620.88/185,438.70 = 34,881.96/x
  3. Step 3: Cross multiply
    123,620.88x = 185,438.70 × 34,881.96
  4. Step 4: Simplify right side
    123,620.88x = 6,468,465,315.85
  5. Step 5: Solve for x
    x = 6,468,465,315.85/123,620.88
  6. Step 6: Final answer
    x = 52,325.02

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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.