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Finding the Fourth Proportional to 297,712.72, 410,819.72 and 170,359.12

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Solution

The fourth proportional to 297,712.72, 410,819.72 and 170,359.12 is: 235,081.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,712.72 : 410,819.72 = 170,359.12 : x
  2. Step 2: Convert to fraction form
    297,712.72/410,819.72 = 170,359.12/x
  3. Step 3: Cross multiply
    297,712.72x = 410,819.72 × 170,359.12
  4. Step 4: Simplify right side
    297,712.72x = 69,986,885,977.85
  5. Step 5: Solve for x
    x = 69,986,885,977.85/297,712.72
  6. Step 6: Final answer
    x = 235,081.95

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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.