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Finding the Fourth Proportional to 226,338.52, 339,560.30 and 66,408

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Solution

The fourth proportional to 226,338.52, 339,560.30 and 66,408 is: 99,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,338.52 : 339,560.30 = 66,408 : x
  2. Step 2: Convert to fraction form
    226,338.52/339,560.30 = 66,408/x
  3. Step 3: Cross multiply
    226,338.52x = 339,560.30 × 66,408
  4. Step 4: Simplify right side
    226,338.52x = 22,549,520,402.40
  5. Step 5: Solve for x
    x = 22,549,520,402.40/226,338.52
  6. Step 6: Final answer
    x = 99,627.41

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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.