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Finding the Fourth Proportional to 117,239.39, 161,790.50 and 63,524.39

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Solution

The fourth proportional to 117,239.39, 161,790.50 and 63,524.39 is: 87,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,239.39 : 161,790.50 = 63,524.39 : x
  2. Step 2: Convert to fraction form
    117,239.39/161,790.50 = 63,524.39/x
  3. Step 3: Cross multiply
    117,239.39x = 161,790.50 × 63,524.39
  4. Step 4: Simplify right side
    117,239.39x = 10,277,641,693.72
  5. Step 5: Solve for x
    x = 10,277,641,693.72/117,239.39
  6. Step 6: Final answer
    x = 87,663.73

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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.