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Finding the Fourth Proportional to 339,577, 508,589.88 and 162,209.50

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Solution

The fourth proportional to 339,577, 508,589.88 and 162,209.50 is: 242,943.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,577 : 508,589.88 = 162,209.50 : x
  2. Step 2: Convert to fraction form
    339,577/508,589.88 = 162,209.50/x
  3. Step 3: Cross multiply
    339,577x = 508,589.88 × 162,209.50
  4. Step 4: Simplify right side
    339,577x = 82,498,110,139.86
  5. Step 5: Solve for x
    x = 82,498,110,139.86/339,577
  6. Step 6: Final answer
    x = 242,943.75

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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.