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Finding the Fourth Proportional to 179,255.70, 268,883.55 and 74,279.70

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Solution

The fourth proportional to 179,255.70, 268,883.55 and 74,279.70 is: 111,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,255.70 : 268,883.55 = 74,279.70 : x
  2. Step 2: Convert to fraction form
    179,255.70/268,883.55 = 74,279.70/x
  3. Step 3: Cross multiply
    179,255.70x = 268,883.55 × 74,279.70
  4. Step 4: Simplify right side
    179,255.70x = 19,972,589,428.94
  5. Step 5: Solve for x
    x = 19,972,589,428.94/179,255.70
  6. Step 6: Final answer
    x = 111,419.55

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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.