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Finding the Fourth Proportional to 213,363.43, 294,449.96 and 122,719.25

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Solution

The fourth proportional to 213,363.43, 294,449.96 and 122,719.25 is: 169,357.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,363.43 : 294,449.96 = 122,719.25 : x
  2. Step 2: Convert to fraction form
    213,363.43/294,449.96 = 122,719.25/x
  3. Step 3: Cross multiply
    213,363.43x = 294,449.96 × 122,719.25
  4. Step 4: Simplify right side
    213,363.43x = 36,134,678,253.73
  5. Step 5: Solve for x
    x = 36,134,678,253.73/213,363.43
  6. Step 6: Final answer
    x = 169,357.41

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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.