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Finding the Fourth Proportional to 190,863, 263,415.24 and 115,412.04

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Solution

The fourth proportional to 190,863, 263,415.24 and 115,412.04 is: 159,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,863 : 263,415.24 = 115,412.04 : x
  2. Step 2: Convert to fraction form
    190,863/263,415.24 = 115,412.04/x
  3. Step 3: Cross multiply
    190,863x = 263,415.24 × 115,412.04
  4. Step 4: Simplify right side
    190,863x = 30,401,290,215.49
  5. Step 5: Solve for x
    x = 30,401,290,215.49/190,863
  6. Step 6: Final answer
    x = 159,283.31

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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.