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Finding the Fourth Proportional to 117,646.52, 162,351.69 and 63,930.56

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Solution

The fourth proportional to 117,646.52, 162,351.69 and 63,930.56 is: 88,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,646.52 : 162,351.69 = 63,930.56 : x
  2. Step 2: Convert to fraction form
    117,646.52/162,351.69 = 63,930.56/x
  3. Step 3: Cross multiply
    117,646.52x = 162,351.69 × 63,930.56
  4. Step 4: Simplify right side
    117,646.52x = 10,379,234,458.65
  5. Step 5: Solve for x
    x = 10,379,234,458.65/117,646.52
  6. Step 6: Final answer
    x = 88,223.90

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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.