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Finding the Fourth Proportional to 98,791.68, 148,174.68 and 58,288.44

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Solution

The fourth proportional to 98,791.68, 148,174.68 and 58,288.44 is: 87,425.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,791.68 : 148,174.68 = 58,288.44 : x
  2. Step 2: Convert to fraction form
    98,791.68/148,174.68 = 58,288.44/x
  3. Step 3: Cross multiply
    98,791.68x = 148,174.68 × 58,288.44
  4. Step 4: Simplify right side
    98,791.68x = 8,636,870,944.70
  5. Step 5: Solve for x
    x = 8,636,870,944.70/98,791.68
  6. Step 6: Final answer
    x = 87,425.08

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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.