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Finding the Fourth Proportional to 82,808.91, 124,216.29 and 26,641.44

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Solution

The fourth proportional to 82,808.91, 124,216.29 and 26,641.44 is: 39,963.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,808.91 : 124,216.29 = 26,641.44 : x
  2. Step 2: Convert to fraction form
    82,808.91/124,216.29 = 26,641.44/x
  3. Step 3: Cross multiply
    82,808.91x = 124,216.29 × 26,641.44
  4. Step 4: Simplify right side
    82,808.91x = 3,309,300,837.06
  5. Step 5: Solve for x
    x = 3,309,300,837.06/82,808.91
  6. Step 6: Final answer
    x = 39,963.10

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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.