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Finding the Fourth Proportional to 92,108.48, 138,156.44 and 35,938.20

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Solution

The fourth proportional to 92,108.48, 138,156.44 and 35,938.20 is: 53,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,108.48 : 138,156.44 = 35,938.20 : x
  2. Step 2: Convert to fraction form
    92,108.48/138,156.44 = 35,938.20/x
  3. Step 3: Cross multiply
    92,108.48x = 138,156.44 × 35,938.20
  4. Step 4: Simplify right side
    92,108.48x = 4,965,093,772.01
  5. Step 5: Solve for x
    x = 4,965,093,772.01/92,108.48
  6. Step 6: Final answer
    x = 53,904.85

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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.