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Finding the Fourth Proportional to 201,873.36, 278,591.88 and 111,233.04

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Solution

The fourth proportional to 201,873.36, 278,591.88 and 111,233.04 is: 153,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,873.36 : 278,591.88 = 111,233.04 : x
  2. Step 2: Convert to fraction form
    201,873.36/278,591.88 = 111,233.04/x
  3. Step 3: Cross multiply
    201,873.36x = 278,591.88 × 111,233.04
  4. Step 4: Simplify right side
    201,873.36x = 30,988,621,731.72
  5. Step 5: Solve for x
    x = 30,988,621,731.72/201,873.36
  6. Step 6: Final answer
    x = 153,505.26

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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.