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Finding the Fourth Proportional to 190,618.92, 285,930.81 and 50,376.33

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Solution

The fourth proportional to 190,618.92, 285,930.81 and 50,376.33 is: 75,565.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,618.92 : 285,930.81 = 50,376.33 : x
  2. Step 2: Convert to fraction form
    190,618.92/285,930.81 = 50,376.33/x
  3. Step 3: Cross multiply
    190,618.92x = 285,930.81 × 50,376.33
  4. Step 4: Simplify right side
    190,618.92x = 14,404,144,841.73
  5. Step 5: Solve for x
    x = 14,404,144,841.73/190,618.92
  6. Step 6: Final answer
    x = 75,565.14

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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.