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Finding the Fourth Proportional to 117,669.80, 162,385.42 and 63,954.95

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Solution

The fourth proportional to 117,669.80, 162,385.42 and 63,954.95 is: 88,258.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,669.80 : 162,385.42 = 63,954.95 : x
  2. Step 2: Convert to fraction form
    117,669.80/162,385.42 = 63,954.95/x
  3. Step 3: Cross multiply
    117,669.80x = 162,385.42 × 63,954.95
  4. Step 4: Simplify right side
    117,669.80x = 10,385,351,662.91
  5. Step 5: Solve for x
    x = 10,385,351,662.91/117,669.80
  6. Step 6: Final answer
    x = 88,258.43

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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.