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Finding the Fourth Proportional to 77,876.27, 116,814.41 and 21,714.11

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Solution

The fourth proportional to 77,876.27, 116,814.41 and 21,714.11 is: 32,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,876.27 : 116,814.41 = 21,714.11 : x
  2. Step 2: Convert to fraction form
    77,876.27/116,814.41 = 21,714.11/x
  3. Step 3: Cross multiply
    77,876.27x = 116,814.41 × 21,714.11
  4. Step 4: Simplify right side
    77,876.27x = 2,536,520,255.68
  5. Step 5: Solve for x
    x = 2,536,520,255.68/77,876.27
  6. Step 6: Final answer
    x = 32,571.16

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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.