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Finding the Fourth Proportional to 132,588.92, 198,620.93 and 115,967.72

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Solution

The fourth proportional to 132,588.92, 198,620.93 and 115,967.72 is: 173,722.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,588.92 : 198,620.93 = 115,967.72 : x
  2. Step 2: Convert to fraction form
    132,588.92/198,620.93 = 115,967.72/x
  3. Step 3: Cross multiply
    132,588.92x = 198,620.93 × 115,967.72
  4. Step 4: Simplify right side
    132,588.92x = 23,033,616,396.38
  5. Step 5: Solve for x
    x = 23,033,616,396.38/132,588.92
  6. Step 6: Final answer
    x = 173,722.03

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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.