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Finding the Fourth Proportional to 58,807.78, 81,136.85 and 33,310.09

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Solution

The fourth proportional to 58,807.78, 81,136.85 and 33,310.09 is: 45,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,807.78 : 81,136.85 = 33,310.09 : x
  2. Step 2: Convert to fraction form
    58,807.78/81,136.85 = 33,310.09/x
  3. Step 3: Cross multiply
    58,807.78x = 81,136.85 × 33,310.09
  4. Step 4: Simplify right side
    58,807.78x = 2,702,675,775.82
  5. Step 5: Solve for x
    x = 2,702,675,775.82/58,807.78
  6. Step 6: Final answer
    x = 45,957.79

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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.