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Finding the Fourth Proportional to 226,051.50, 311,951.88 and 125,449.50

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Solution

The fourth proportional to 226,051.50, 311,951.88 and 125,449.50 is: 173,120.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,051.50 : 311,951.88 = 125,449.50 : x
  2. Step 2: Convert to fraction form
    226,051.50/311,951.88 = 125,449.50/x
  3. Step 3: Cross multiply
    226,051.50x = 311,951.88 × 125,449.50
  4. Step 4: Simplify right side
    226,051.50x = 39,134,207,370.06
  5. Step 5: Solve for x
    x = 39,134,207,370.06/226,051.50
  6. Step 6: Final answer
    x = 173,120.76

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1.5x scale

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.