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Finding the Fourth Proportional to 104,279.81, 143,895.49 and 63,995.27

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Solution

The fourth proportional to 104,279.81, 143,895.49 and 63,995.27 is: 88,306.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,279.81 : 143,895.49 = 63,995.27 : x
  2. Step 2: Convert to fraction form
    104,279.81/143,895.49 = 63,995.27/x
  3. Step 3: Cross multiply
    104,279.81x = 143,895.49 × 63,995.27
  4. Step 4: Simplify right side
    104,279.81x = 9,208,629,854.87
  5. Step 5: Solve for x
    x = 9,208,629,854.87/104,279.81
  6. Step 6: Final answer
    x = 88,306.93

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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.