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Finding the Fourth Proportional to 250,079.22, 345,109.34 and 136,901.97

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Solution

The fourth proportional to 250,079.22, 345,109.34 and 136,901.97 is: 188,924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,079.22 : 345,109.34 = 136,901.97 : x
  2. Step 2: Convert to fraction form
    250,079.22/345,109.34 = 136,901.97/x
  3. Step 3: Cross multiply
    250,079.22x = 345,109.34 × 136,901.97
  4. Step 4: Simplify right side
    250,079.22x = 47,246,148,511.40
  5. Step 5: Solve for x
    x = 47,246,148,511.40/250,079.22
  6. Step 6: Final answer
    x = 188,924.73

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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.