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Finding the Fourth Proportional to 201,086.06, 301,562.11 and 81,112.03

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Solution

The fourth proportional to 201,086.06, 301,562.11 and 81,112.03 is: 121,641.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,086.06 : 301,562.11 = 81,112.03 : x
  2. Step 2: Convert to fraction form
    201,086.06/301,562.11 = 81,112.03/x
  3. Step 3: Cross multiply
    201,086.06x = 301,562.11 × 81,112.03
  4. Step 4: Simplify right side
    201,086.06x = 24,460,314,913.18
  5. Step 5: Solve for x
    x = 24,460,314,913.18/201,086.06
  6. Step 6: Final answer
    x = 121,641.03

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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.