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Finding the Fourth Proportional to 250,451.90, 345,622.86 and 135,733.82

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Solution

The fourth proportional to 250,451.90, 345,622.86 and 135,733.82 is: 187,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,451.90 : 345,622.86 = 135,733.82 : x
  2. Step 2: Convert to fraction form
    250,451.90/345,622.86 = 135,733.82/x
  3. Step 3: Cross multiply
    250,451.90x = 345,622.86 × 135,733.82
  4. Step 4: Simplify right side
    250,451.90x = 46,912,711,067.13
  5. Step 5: Solve for x
    x = 46,912,711,067.13/250,451.90
  6. Step 6: Final answer
    x = 187,312.26

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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.