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Finding the Fourth Proportional to 81,495.91, 122,254.94 and 25,325.52

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Solution

The fourth proportional to 81,495.91, 122,254.94 and 25,325.52 is: 37,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,495.91 : 122,254.94 = 25,325.52 : x
  2. Step 2: Convert to fraction form
    81,495.91/122,254.94 = 25,325.52/x
  3. Step 3: Cross multiply
    81,495.91x = 122,254.94 × 25,325.52
  4. Step 4: Simplify right side
    81,495.91x = 3,096,169,928.07
  5. Step 5: Solve for x
    x = 3,096,169,928.07/81,495.91
  6. Step 6: Final answer
    x = 37,991.72

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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.