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Finding the Fourth Proportional to 106,661.80, 159,762.30 and 88,229.80

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Solution

The fourth proportional to 106,661.80, 159,762.30 and 88,229.80 is: 132,154.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,661.80 : 159,762.30 = 88,229.80 : x
  2. Step 2: Convert to fraction form
    106,661.80/159,762.30 = 88,229.80/x
  3. Step 3: Cross multiply
    106,661.80x = 159,762.30 × 88,229.80
  4. Step 4: Simplify right side
    106,661.80x = 14,095,795,776.54
  5. Step 5: Solve for x
    x = 14,095,795,776.54/106,661.80
  6. Step 6: Final answer
    x = 132,154.11

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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.