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Finding the Fourth Proportional to 86,658.93, 119,590.11 and 50,849.54

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Solution

The fourth proportional to 86,658.93, 119,590.11 and 50,849.54 is: 70,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,658.93 : 119,590.11 = 50,849.54 : x
  2. Step 2: Convert to fraction form
    86,658.93/119,590.11 = 50,849.54/x
  3. Step 3: Cross multiply
    86,658.93x = 119,590.11 × 50,849.54
  4. Step 4: Simplify right side
    86,658.93x = 6,081,102,082.05
  5. Step 5: Solve for x
    x = 6,081,102,082.05/86,658.93
  6. Step 6: Final answer
    x = 70,172.83

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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.