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Finding the Fourth Proportional to 106,732.80, 159,868.80 and 88,300.80

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Solution

The fourth proportional to 106,732.80, 159,868.80 and 88,300.80 is: 132,260.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,732.80 : 159,868.80 = 88,300.80 : x
  2. Step 2: Convert to fraction form
    106,732.80/159,868.80 = 88,300.80/x
  3. Step 3: Cross multiply
    106,732.80x = 159,868.80 × 88,300.80
  4. Step 4: Simplify right side
    106,732.80x = 14,116,542,935.04
  5. Step 5: Solve for x
    x = 14,116,542,935.04/106,732.80
  6. Step 6: Final answer
    x = 132,260.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.