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Finding the Fourth Proportional to 142,668.99, 213,857.67 and 92,849.13

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Solution

The fourth proportional to 142,668.99, 213,857.67 and 92,849.13 is: 139,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,668.99 : 213,857.67 = 92,849.13 : x
  2. Step 2: Convert to fraction form
    142,668.99/213,857.67 = 92,849.13/x
  3. Step 3: Cross multiply
    142,668.99x = 213,857.67 × 92,849.13
  4. Step 4: Simplify right side
    142,668.99x = 19,856,498,603.33
  5. Step 5: Solve for x
    x = 19,856,498,603.33/142,668.99
  6. Step 6: Final answer
    x = 139,178.80

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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.