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Finding the Fourth Proportional to 58,719.58, 81,093.09 and 54,957.94

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Solution

The fourth proportional to 58,719.58, 81,093.09 and 54,957.94 is: 75,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,719.58 : 81,093.09 = 54,957.94 : x
  2. Step 2: Convert to fraction form
    58,719.58/81,093.09 = 54,957.94/x
  3. Step 3: Cross multiply
    58,719.58x = 81,093.09 × 54,957.94
  4. Step 4: Simplify right side
    58,719.58x = 4,456,709,174.63
  5. Step 5: Solve for x
    x = 4,456,709,174.63/58,719.58
  6. Step 6: Final answer
    x = 75,898.18

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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.