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Finding the Fourth Proportional to 190,162.47, 285,287.46 and 63,819.48

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Solution

The fourth proportional to 190,162.47, 285,287.46 and 63,819.48 is: 95,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,162.47 : 285,287.46 = 63,819.48 : x
  2. Step 2: Convert to fraction form
    190,162.47/285,287.46 = 63,819.48/x
  3. Step 3: Cross multiply
    190,162.47x = 285,287.46 × 63,819.48
  4. Step 4: Simplify right side
    190,162.47x = 18,206,898,178.23
  5. Step 5: Solve for x
    x = 18,206,898,178.23/190,162.47
  6. Step 6: Final answer
    x = 95,743.91

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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.