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Finding the Fourth Proportional to 250,626.79, 345,883.28 and 143,194.52

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Solution

The fourth proportional to 250,626.79, 345,883.28 and 143,194.52 is: 197,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,626.79 : 345,883.28 = 143,194.52 : x
  2. Step 2: Convert to fraction form
    250,626.79/345,883.28 = 143,194.52/x
  3. Step 3: Cross multiply
    250,626.79x = 345,883.28 × 143,194.52
  4. Step 4: Simplify right side
    250,626.79x = 49,528,590,404.36
  5. Step 5: Solve for x
    x = 49,528,590,404.36/250,626.79
  6. Step 6: Final answer
    x = 197,618.90

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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.