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Finding the Fourth Proportional to 171,196.80, 256,775.76 and 66,006.96

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Solution

The fourth proportional to 171,196.80, 256,775.76 and 66,006.96 is: 99,002.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,196.80 : 256,775.76 = 66,006.96 : x
  2. Step 2: Convert to fraction form
    171,196.80/256,775.76 = 66,006.96/x
  3. Step 3: Cross multiply
    171,196.80x = 256,775.76 × 66,006.96
  4. Step 4: Simplify right side
    171,196.80x = 16,948,987,319.29
  5. Step 5: Solve for x
    x = 16,948,987,319.29/171,196.80
  6. Step 6: Final answer
    x = 99,002.94

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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.