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Finding the Fourth Proportional to 92,370.85, 138,610.10 and 39,059.65

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Solution

The fourth proportional to 92,370.85, 138,610.10 and 39,059.65 is: 58,612.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,370.85 : 138,610.10 = 39,059.65 : x
  2. Step 2: Convert to fraction form
    92,370.85/138,610.10 = 39,059.65/x
  3. Step 3: Cross multiply
    92,370.85x = 138,610.10 × 39,059.65
  4. Step 4: Simplify right side
    92,370.85x = 5,414,061,682.63
  5. Step 5: Solve for x
    x = 5,414,061,682.63/92,370.85
  6. Step 6: Final answer
    x = 58,612.23

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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.