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Finding the Fourth Proportional to 171,774.52, 257,738.45 and 66,601.69

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Solution

The fourth proportional to 171,774.52, 257,738.45 and 66,601.69 is: 99,932.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,774.52 : 257,738.45 = 66,601.69 : x
  2. Step 2: Convert to fraction form
    171,774.52/257,738.45 = 66,601.69/x
  3. Step 3: Cross multiply
    171,774.52x = 257,738.45 × 66,601.69
  4. Step 4: Simplify right side
    171,774.52x = 17,165,816,347.98
  5. Step 5: Solve for x
    x = 17,165,816,347.98/171,774.52
  6. Step 6: Final answer
    x = 99,932.26

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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.