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Finding the Fourth Proportional to 114,558.21, 171,891.99 and 55,360.98

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Solution

The fourth proportional to 114,558.21, 171,891.99 and 55,360.98 is: 83,067.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,558.21 : 171,891.99 = 55,360.98 : x
  2. Step 2: Convert to fraction form
    114,558.21/171,891.99 = 55,360.98/x
  3. Step 3: Cross multiply
    114,558.21x = 171,891.99 × 55,360.98
  4. Step 4: Simplify right side
    114,558.21x = 9,516,109,020.55
  5. Step 5: Solve for x
    x = 9,516,109,020.55/114,558.21
  6. Step 6: Final answer
    x = 83,067.89

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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.