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Finding the Fourth Proportional to 171,202.76, 256,877.66 and 66,095.54

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Solution

The fourth proportional to 171,202.76, 256,877.66 and 66,095.54 is: 99,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,202.76 : 256,877.66 = 66,095.54 : x
  2. Step 2: Convert to fraction form
    171,202.76/256,877.66 = 66,095.54/x
  3. Step 3: Cross multiply
    171,202.76x = 256,877.66 × 66,095.54
  4. Step 4: Simplify right side
    171,202.76x = 16,978,467,651.64
  5. Step 5: Solve for x
    x = 16,978,467,651.64/171,202.76
  6. Step 6: Final answer
    x = 99,171.69

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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.