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Finding the Fourth Proportional to 92,469.72, 138,783.18 and 36,349.04

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Solution

The fourth proportional to 92,469.72, 138,783.18 and 36,349.04 is: 54,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,469.72 : 138,783.18 = 36,349.04 : x
  2. Step 2: Convert to fraction form
    92,469.72/138,783.18 = 36,349.04/x
  3. Step 3: Cross multiply
    92,469.72x = 138,783.18 × 36,349.04
  4. Step 4: Simplify right side
    92,469.72x = 5,044,635,361.15
  5. Step 5: Solve for x
    x = 5,044,635,361.15/92,469.72
  6. Step 6: Final answer
    x = 54,554.46

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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.