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Finding the Fourth Proportional to 92,422.90, 138,633.90 and 36,223.30

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Solution

The fourth proportional to 92,422.90, 138,633.90 and 36,223.30 is: 54,334.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,422.90 : 138,633.90 = 36,223.30 : x
  2. Step 2: Convert to fraction form
    92,422.90/138,633.90 = 36,223.30/x
  3. Step 3: Cross multiply
    92,422.90x = 138,633.90 × 36,223.30
  4. Step 4: Simplify right side
    92,422.90x = 5,021,777,349.87
  5. Step 5: Solve for x
    x = 5,021,777,349.87/92,422.90
  6. Step 6: Final answer
    x = 54,334.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.