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Finding the Fourth Proportional to 92,791.83, 139,174.79 and 39,505.17

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Solution

The fourth proportional to 92,791.83, 139,174.79 and 39,505.17 is: 59,252.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,791.83 : 139,174.79 = 39,505.17 : x
  2. Step 2: Convert to fraction form
    92,791.83/139,174.79 = 39,505.17/x
  3. Step 3: Cross multiply
    92,791.83x = 139,174.79 × 39,505.17
  4. Step 4: Simplify right side
    92,791.83x = 5,498,123,541.14
  5. Step 5: Solve for x
    x = 5,498,123,541.14/92,791.83
  6. Step 6: Final answer
    x = 59,252.24

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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.