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Finding the Fourth Proportional to 136,760.48, 188,580.67 and 88,925.12

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Solution

The fourth proportional to 136,760.48, 188,580.67 and 88,925.12 is: 122,619.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,760.48 : 188,580.67 = 88,925.12 : x
  2. Step 2: Convert to fraction form
    136,760.48/188,580.67 = 88,925.12/x
  3. Step 3: Cross multiply
    136,760.48x = 188,580.67 × 88,925.12
  4. Step 4: Simplify right side
    136,760.48x = 16,769,557,766.53
  5. Step 5: Solve for x
    x = 16,769,557,766.53/136,760.48
  6. Step 6: Final answer
    x = 122,619.91

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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.