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Finding the Fourth Proportional to 91,792.60, 137,673 and 25,216.88

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Solution

The fourth proportional to 91,792.60, 137,673 and 25,216.88 is: 37,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,792.60 : 137,673 = 25,216.88 : x
  2. Step 2: Convert to fraction form
    91,792.60/137,673 = 25,216.88/x
  3. Step 3: Cross multiply
    91,792.60x = 137,673 × 25,216.88
  4. Step 4: Simplify right side
    91,792.60x = 3,471,683,520.24
  5. Step 5: Solve for x
    x = 3,471,683,520.24/91,792.60
  6. Step 6: Final answer
    x = 37,820.95

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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.