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Finding the Fourth Proportional to 190,635.14, 285,996.64 and 65,976.14

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Solution

The fourth proportional to 190,635.14, 285,996.64 and 65,976.14 is: 98,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,635.14 : 285,996.64 = 65,976.14 : x
  2. Step 2: Convert to fraction form
    190,635.14/285,996.64 = 65,976.14/x
  3. Step 3: Cross multiply
    190,635.14x = 285,996.64 × 65,976.14
  4. Step 4: Simplify right side
    190,635.14x = 18,868,954,360.17
  5. Step 5: Solve for x
    x = 18,868,954,360.17/190,635.14
  6. Step 6: Final answer
    x = 98,979.41

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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.