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Finding the Fourth Proportional to 146,351.21, 201,997.28 and 88,978.41

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Solution

The fourth proportional to 146,351.21, 201,997.28 and 88,978.41 is: 122,810.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,351.21 : 201,997.28 = 88,978.41 : x
  2. Step 2: Convert to fraction form
    146,351.21/201,997.28 = 88,978.41/x
  3. Step 3: Cross multiply
    146,351.21x = 201,997.28 × 88,978.41
  4. Step 4: Simplify right side
    146,351.21x = 17,973,397,021.17
  5. Step 5: Solve for x
    x = 17,973,397,021.17/146,351.21
  6. Step 6: Final answer
    x = 122,810.04

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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.