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Finding the Fourth Proportional to 117,649.38, 162,355.80 and 63,934.41

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Solution

The fourth proportional to 117,649.38, 162,355.80 and 63,934.41 is: 88,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,649.38 : 162,355.80 = 63,934.41 : x
  2. Step 2: Convert to fraction form
    117,649.38/162,355.80 = 63,934.41/x
  3. Step 3: Cross multiply
    117,649.38x = 162,355.80 × 63,934.41
  4. Step 4: Simplify right side
    117,649.38x = 10,380,122,283.08
  5. Step 5: Solve for x
    x = 10,380,122,283.08/117,649.38
  6. Step 6: Final answer
    x = 88,229.30

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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.