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Finding the Fourth Proportional to 114,601.80, 171,951.30 and 72,514.20

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Solution

The fourth proportional to 114,601.80, 171,951.30 and 72,514.20 is: 108,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,601.80 : 171,951.30 = 72,514.20 : x
  2. Step 2: Convert to fraction form
    114,601.80/171,951.30 = 72,514.20/x
  3. Step 3: Cross multiply
    114,601.80x = 171,951.30 × 72,514.20
  4. Step 4: Simplify right side
    114,601.80x = 12,468,910,958.46
  5. Step 5: Solve for x
    x = 12,468,910,958.46/114,601.80
  6. Step 6: Final answer
    x = 108,802.05

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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.