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Finding the Fourth Proportional to 104,992.73, 144,890.64 and 57,246.87

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Solution

The fourth proportional to 104,992.73, 144,890.64 and 57,246.87 is: 79,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,992.73 : 144,890.64 = 57,246.87 : x
  2. Step 2: Convert to fraction form
    104,992.73/144,890.64 = 57,246.87/x
  3. Step 3: Cross multiply
    104,992.73x = 144,890.64 × 57,246.87
  4. Step 4: Simplify right side
    104,992.73x = 8,294,535,632.30
  5. Step 5: Solve for x
    x = 8,294,535,632.30/104,992.73
  6. Step 6: Final answer
    x = 79,001.05

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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.