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Finding the Fourth Proportional to 123,651.45, 185,352.52 and 48,742.58

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Solution

The fourth proportional to 123,651.45, 185,352.52 and 48,742.58 is: 73,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,651.45 : 185,352.52 = 48,742.58 : x
  2. Step 2: Convert to fraction form
    123,651.45/185,352.52 = 48,742.58/x
  3. Step 3: Cross multiply
    123,651.45x = 185,352.52 × 48,742.58
  4. Step 4: Simplify right side
    123,651.45x = 9,034,560,034.30
  5. Step 5: Solve for x
    x = 9,034,560,034.30/123,651.45
  6. Step 6: Final answer
    x = 73,064.73

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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.