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Finding the Fourth Proportional to 201,112.80, 301,778.55 and 82,796.10

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Solution

The fourth proportional to 201,112.80, 301,778.55 and 82,796.10 is: 124,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,112.80 : 301,778.55 = 82,796.10 : x
  2. Step 2: Convert to fraction form
    201,112.80/301,778.55 = 82,796.10/x
  3. Step 3: Cross multiply
    201,112.80x = 301,778.55 × 82,796.10
  4. Step 4: Simplify right side
    201,112.80x = 24,986,087,003.66
  5. Step 5: Solve for x
    x = 24,986,087,003.66/201,112.80
  6. Step 6: Final answer
    x = 124,239.17

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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.