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Finding the Fourth Proportional to 114,479.52, 171,661.64 and 67,105.91

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Solution

The fourth proportional to 114,479.52, 171,661.64 and 67,105.91 is: 100,625.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,479.52 : 171,661.64 = 67,105.91 : x
  2. Step 2: Convert to fraction form
    114,479.52/171,661.64 = 67,105.91/x
  3. Step 3: Cross multiply
    114,479.52x = 171,661.64 × 67,105.91
  4. Step 4: Simplify right side
    114,479.52x = 11,519,511,161.21
  5. Step 5: Solve for x
    x = 11,519,511,161.21/114,479.52
  6. Step 6: Final answer
    x = 100,625.08

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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.