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Finding the Fourth Proportional to 234,467.69, 323,528.85 and 138,958.97

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Solution

The fourth proportional to 234,467.69, 323,528.85 and 138,958.97 is: 191,741.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,467.69 : 323,528.85 = 138,958.97 : x
  2. Step 2: Convert to fraction form
    234,467.69/323,528.85 = 138,958.97/x
  3. Step 3: Cross multiply
    234,467.69x = 323,528.85 × 138,958.97
  4. Step 4: Simplify right side
    234,467.69x = 44,957,235,761.28
  5. Step 5: Solve for x
    x = 44,957,235,761.28/234,467.69
  6. Step 6: Final answer
    x = 191,741.71

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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.