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Finding the Fourth Proportional to 201,081.80, 301,853.10 and 118,022.60

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Solution

The fourth proportional to 201,081.80, 301,853.10 and 118,022.60 is: 177,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,081.80 : 301,853.10 = 118,022.60 : x
  2. Step 2: Convert to fraction form
    201,081.80/301,853.10 = 118,022.60/x
  3. Step 3: Cross multiply
    201,081.80x = 301,853.10 × 118,022.60
  4. Step 4: Simplify right side
    201,081.80x = 35,625,487,680.06
  5. Step 5: Solve for x
    x = 35,625,487,680.06/201,081.80
  6. Step 6: Final answer
    x = 177,169.13

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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.