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Finding the Fourth Proportional to 179,778.70, 248,143.95 and 104,351.50

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Solution

The fourth proportional to 179,778.70, 248,143.95 and 104,351.50 is: 144,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,778.70 : 248,143.95 = 104,351.50 : x
  2. Step 2: Convert to fraction form
    179,778.70/248,143.95 = 104,351.50/x
  3. Step 3: Cross multiply
    179,778.70x = 248,143.95 × 104,351.50
  4. Step 4: Simplify right side
    179,778.70x = 25,894,193,398.43
  5. Step 5: Solve for x
    x = 25,894,193,398.43/179,778.70
  6. Step 6: Final answer
    x = 144,033.71

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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.