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Finding the Fourth Proportional to 169,872.20, 254,832.60 and 51,552.80

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Solution

The fourth proportional to 169,872.20, 254,832.60 and 51,552.80 is: 77,336.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,872.20 : 254,832.60 = 51,552.80 : x
  2. Step 2: Convert to fraction form
    169,872.20/254,832.60 = 51,552.80/x
  3. Step 3: Cross multiply
    169,872.20x = 254,832.60 × 51,552.80
  4. Step 4: Simplify right side
    169,872.20x = 13,137,334,061.28
  5. Step 5: Solve for x
    x = 13,137,334,061.28/169,872.20
  6. Step 6: Final answer
    x = 77,336.57

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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.