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Finding the Fourth Proportional to 84,753.91, 116,981.90 and 57,907.27

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Solution

The fourth proportional to 84,753.91, 116,981.90 and 57,907.27 is: 79,926.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,753.91 : 116,981.90 = 57,907.27 : x
  2. Step 2: Convert to fraction form
    84,753.91/116,981.90 = 57,907.27/x
  3. Step 3: Cross multiply
    84,753.91x = 116,981.90 × 57,907.27
  4. Step 4: Simplify right side
    84,753.91x = 6,774,102,468.41
  5. Step 5: Solve for x
    x = 6,774,102,468.41/84,753.91
  6. Step 6: Final answer
    x = 79,926.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.