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Finding the Fourth Proportional to 247,134.30, 341,066.49 and 139,723.44

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Solution

The fourth proportional to 247,134.30, 341,066.49 and 139,723.44 is: 192,830.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,134.30 : 341,066.49 = 139,723.44 : x
  2. Step 2: Convert to fraction form
    247,134.30/341,066.49 = 139,723.44/x
  3. Step 3: Cross multiply
    247,134.30x = 341,066.49 × 139,723.44
  4. Step 4: Simplify right side
    247,134.30x = 47,654,983,251.53
  5. Step 5: Solve for x
    x = 47,654,983,251.53/247,134.30
  6. Step 6: Final answer
    x = 192,830.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.