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Finding the Fourth Proportional to 201,801.02, 278,487.33 and 111,157.37

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Solution

The fourth proportional to 201,801.02, 278,487.33 and 111,157.37 is: 153,398.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,801.02 : 278,487.33 = 111,157.37 : x
  2. Step 2: Convert to fraction form
    201,801.02/278,487.33 = 111,157.37/x
  3. Step 3: Cross multiply
    201,801.02x = 278,487.33 × 111,157.37
  4. Step 4: Simplify right side
    201,801.02x = 30,955,919,181.12
  5. Step 5: Solve for x
    x = 30,955,919,181.12/201,801.02
  6. Step 6: Final answer
    x = 153,398.23

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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.