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Finding the Fourth Proportional to 139,551.74, 192,586.47 and 79,947.26

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Solution

The fourth proportional to 139,551.74, 192,586.47 and 79,947.26 is: 110,330.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,551.74 : 192,586.47 = 79,947.26 : x
  2. Step 2: Convert to fraction form
    139,551.74/192,586.47 = 79,947.26/x
  3. Step 3: Cross multiply
    139,551.74x = 192,586.47 × 79,947.26
  4. Step 4: Simplify right side
    139,551.74x = 15,396,760,589.57
  5. Step 5: Solve for x
    x = 15,396,760,589.57/139,551.74
  6. Step 6: Final answer
    x = 110,330.12

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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.