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Finding the Fourth Proportional to 226,713.10, 340,069.65 and 191,721.10

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Solution

The fourth proportional to 226,713.10, 340,069.65 and 191,721.10 is: 287,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,713.10 : 340,069.65 = 191,721.10 : x
  2. Step 2: Convert to fraction form
    226,713.10/340,069.65 = 191,721.10/x
  3. Step 3: Cross multiply
    226,713.10x = 340,069.65 × 191,721.10
  4. Step 4: Simplify right side
    226,713.10x = 65,198,527,374.62
  5. Step 5: Solve for x
    x = 65,198,527,374.62/226,713.10
  6. Step 6: Final answer
    x = 287,581.65

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1.5x scale

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.