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Finding the Fourth Proportional to 92,322.50, 138,469.71 and 25,755.62

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Solution

The fourth proportional to 92,322.50, 138,469.71 and 25,755.62 is: 38,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,322.50 : 138,469.71 = 25,755.62 : x
  2. Step 2: Convert to fraction form
    92,322.50/138,469.71 = 25,755.62/x
  3. Step 3: Cross multiply
    92,322.50x = 138,469.71 × 25,755.62
  4. Step 4: Simplify right side
    92,322.50x = 3,566,373,232.27
  5. Step 5: Solve for x
    x = 3,566,373,232.27/92,322.50
  6. Step 6: Final answer
    x = 38,629.51

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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.