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Finding the Fourth Proportional to 104,141.73, 143,720.82 and 61,123.08

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Solution

The fourth proportional to 104,141.73, 143,720.82 and 61,123.08 is: 84,352.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,141.73 : 143,720.82 = 61,123.08 : x
  2. Step 2: Convert to fraction form
    104,141.73/143,720.82 = 61,123.08/x
  3. Step 3: Cross multiply
    104,141.73x = 143,720.82 × 61,123.08
  4. Step 4: Simplify right side
    104,141.73x = 8,784,659,178.53
  5. Step 5: Solve for x
    x = 8,784,659,178.53/104,141.73
  6. Step 6: Final answer
    x = 84,352.92

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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.