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Finding the Fourth Proportional to 168,205.39, 232,129.04 and 91,728.67

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Solution

The fourth proportional to 168,205.39, 232,129.04 and 91,728.67 is: 126,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,205.39 : 232,129.04 = 91,728.67 : x
  2. Step 2: Convert to fraction form
    168,205.39/232,129.04 = 91,728.67/x
  3. Step 3: Cross multiply
    168,205.39x = 232,129.04 × 91,728.67
  4. Step 4: Simplify right side
    168,205.39x = 21,292,888,799.05
  5. Step 5: Solve for x
    x = 21,292,888,799.05/168,205.39
  6. Step 6: Final answer
    x = 126,588.62

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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.