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Finding the Fourth Proportional to 144,120.45, 198,969.22 and 95,787.91

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Solution

The fourth proportional to 144,120.45, 198,969.22 and 95,787.91 is: 132,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,120.45 : 198,969.22 = 95,787.91 : x
  2. Step 2: Convert to fraction form
    144,120.45/198,969.22 = 95,787.91/x
  3. Step 3: Cross multiply
    144,120.45x = 198,969.22 × 95,787.91
  4. Step 4: Simplify right side
    144,120.45x = 19,058,846,106.58
  5. Step 5: Solve for x
    x = 19,058,846,106.58/144,120.45
  6. Step 6: Final answer
    x = 132,242.48

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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.