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Finding the Fourth Proportional to 92,578.75, 138,733.93 and 39,197.04

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Solution

The fourth proportional to 92,578.75, 138,733.93 and 39,197.04 is: 58,738.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,578.75 : 138,733.93 = 39,197.04 : x
  2. Step 2: Convert to fraction form
    92,578.75/138,733.93 = 39,197.04/x
  3. Step 3: Cross multiply
    92,578.75x = 138,733.93 × 39,197.04
  4. Step 4: Simplify right side
    92,578.75x = 5,437,959,403.57
  5. Step 5: Solve for x
    x = 5,437,959,403.57/92,578.75
  6. Step 6: Final answer
    x = 58,738.74

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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.