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Finding the Fourth Proportional to 92,388.98, 138,604.31 and 29,212.93

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Solution

The fourth proportional to 92,388.98, 138,604.31 and 29,212.93 is: 43,825.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,388.98 : 138,604.31 = 29,212.93 : x
  2. Step 2: Convert to fraction form
    92,388.98/138,604.31 = 29,212.93/x
  3. Step 3: Cross multiply
    92,388.98x = 138,604.31 × 29,212.93
  4. Step 4: Simplify right side
    92,388.98x = 4,049,037,916.97
  5. Step 5: Solve for x
    x = 4,049,037,916.97/92,388.98
  6. Step 6: Final answer
    x = 43,825.98

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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.