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Finding the Fourth Proportional to 497,745.20, 746,620.68 and 123,768.20

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Solution

The fourth proportional to 497,745.20, 746,620.68 and 123,768.20 is: 185,653.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,745.20 : 746,620.68 = 123,768.20 : x
  2. Step 2: Convert to fraction form
    497,745.20/746,620.68 = 123,768.20/x
  3. Step 3: Cross multiply
    497,745.20x = 746,620.68 × 123,768.20
  4. Step 4: Simplify right side
    497,745.20x = 92,407,897,646.38
  5. Step 5: Solve for x
    x = 92,407,897,646.38/497,745.20
  6. Step 6: Final answer
    x = 185,653.02

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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.