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Finding the Fourth Proportional to 201,903.33, 278,626.61 and 117,069.60

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Solution

The fourth proportional to 201,903.33, 278,626.61 and 117,069.60 is: 161,556.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,903.33 : 278,626.61 = 117,069.60 : x
  2. Step 2: Convert to fraction form
    201,903.33/278,626.61 = 117,069.60/x
  3. Step 3: Cross multiply
    201,903.33x = 278,626.61 × 117,069.60
  4. Step 4: Simplify right side
    201,903.33x = 32,618,705,782.06
  5. Step 5: Solve for x
    x = 32,618,705,782.06/201,903.33
  6. Step 6: Final answer
    x = 161,556.06

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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.