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Finding the Fourth Proportional to 136,688.88, 188,523.93 and 88,957.62

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Solution

The fourth proportional to 136,688.88, 188,523.93 and 88,957.62 is: 122,692.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,688.88 : 188,523.93 = 88,957.62 : x
  2. Step 2: Convert to fraction form
    136,688.88/188,523.93 = 88,957.62/x
  3. Step 3: Cross multiply
    136,688.88x = 188,523.93 × 88,957.62
  4. Step 4: Simplify right side
    136,688.88x = 16,770,640,125.85
  5. Step 5: Solve for x
    x = 16,770,640,125.85/136,688.88
  6. Step 6: Final answer
    x = 122,692.06

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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.