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Finding the Fourth Proportional to 169,212.70, 253,721.85 and 50,866.30

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Solution

The fourth proportional to 169,212.70, 253,721.85 and 50,866.30 is: 76,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,212.70 : 253,721.85 = 50,866.30 : x
  2. Step 2: Convert to fraction form
    169,212.70/253,721.85 = 50,866.30/x
  3. Step 3: Cross multiply
    169,212.70x = 253,721.85 × 50,866.30
  4. Step 4: Simplify right side
    169,212.70x = 12,905,891,738.66
  5. Step 5: Solve for x
    x = 12,905,891,738.66/169,212.70
  6. Step 6: Final answer
    x = 76,270.23

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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.