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Finding the Fourth Proportional to 250,188.48, 345,227.40 and 142,751.52

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Solution

The fourth proportional to 250,188.48, 345,227.40 and 142,751.52 is: 196,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,188.48 : 345,227.40 = 142,751.52 : x
  2. Step 2: Convert to fraction form
    250,188.48/345,227.40 = 142,751.52/x
  3. Step 3: Cross multiply
    250,188.48x = 345,227.40 × 142,751.52
  4. Step 4: Simplify right side
    250,188.48x = 49,281,736,095.65
  5. Step 5: Solve for x
    x = 49,281,736,095.65/250,188.48
  6. Step 6: Final answer
    x = 196,978.44

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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.