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Finding the Fourth Proportional to 112,358.05, 168,537.08 and 67,961.95

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Solution

The fourth proportional to 112,358.05, 168,537.08 and 67,961.95 is: 101,942.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,358.05 : 168,537.08 = 67,961.95 : x
  2. Step 2: Convert to fraction form
    112,358.05/168,537.08 = 67,961.95/x
  3. Step 3: Cross multiply
    112,358.05x = 168,537.08 × 67,961.95
  4. Step 4: Simplify right side
    112,358.05x = 11,454,108,264.30
  5. Step 5: Solve for x
    x = 11,454,108,264.30/112,358.05
  6. Step 6: Final answer
    x = 101,942.93

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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.