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Finding the Fourth Proportional to 77,873.49, 116,797.46 and 21,717.41

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Solution

The fourth proportional to 77,873.49, 116,797.46 and 21,717.41 is: 32,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,873.49 : 116,797.46 = 21,717.41 : x
  2. Step 2: Convert to fraction form
    77,873.49/116,797.46 = 21,717.41/x
  3. Step 3: Cross multiply
    77,873.49x = 116,797.46 × 21,717.41
  4. Step 4: Simplify right side
    77,873.49x = 2,536,537,633.20
  5. Step 5: Solve for x
    x = 2,536,537,633.20/77,873.49
  6. Step 6: Final answer
    x = 32,572.54

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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.