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Finding the Fourth Proportional to 63,189.78, 87,201.90 and 34,897.29

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Solution

The fourth proportional to 63,189.78, 87,201.90 and 34,897.29 is: 48,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,189.78 : 87,201.90 = 34,897.29 : x
  2. Step 2: Convert to fraction form
    63,189.78/87,201.90 = 34,897.29/x
  3. Step 3: Cross multiply
    63,189.78x = 87,201.90 × 34,897.29
  4. Step 4: Simplify right side
    63,189.78x = 3,043,109,992.85
  5. Step 5: Solve for x
    x = 3,043,109,992.85/63,189.78
  6. Step 6: Final answer
    x = 48,158.26

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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.