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Finding the Fourth Proportional to 112,294.70, 168,251.72 and 67,828.03

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Solution

The fourth proportional to 112,294.70, 168,251.72 and 67,828.03 is: 101,627.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,294.70 : 168,251.72 = 67,828.03 : x
  2. Step 2: Convert to fraction form
    112,294.70/168,251.72 = 67,828.03/x
  3. Step 3: Cross multiply
    112,294.70x = 168,251.72 × 67,828.03
  4. Step 4: Simplify right side
    112,294.70x = 11,412,181,951.94
  5. Step 5: Solve for x
    x = 11,412,181,951.94/112,294.70
  6. Step 6: Final answer
    x = 101,627.08

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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.