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Finding the Fourth Proportional to 169,665.72, 234,080.09 and 108,447.72

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Solution

The fourth proportional to 169,665.72, 234,080.09 and 108,447.72 is: 149,620.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,665.72 : 234,080.09 = 108,447.72 : x
  2. Step 2: Convert to fraction form
    169,665.72/234,080.09 = 108,447.72/x
  3. Step 3: Cross multiply
    169,665.72x = 234,080.09 × 108,447.72
  4. Step 4: Simplify right side
    169,665.72x = 25,385,451,515.66
  5. Step 5: Solve for x
    x = 25,385,451,515.66/169,665.72
  6. Step 6: Final answer
    x = 149,620.39

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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.