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Finding the Fourth Proportional to 171,222.72, 256,808.64 and 66,028.56

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Solution

The fourth proportional to 171,222.72, 256,808.64 and 66,028.56 is: 99,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,222.72 : 256,808.64 = 66,028.56 : x
  2. Step 2: Convert to fraction form
    171,222.72/256,808.64 = 66,028.56/x
  3. Step 3: Cross multiply
    171,222.72x = 256,808.64 × 66,028.56
  4. Step 4: Simplify right side
    171,222.72x = 16,956,704,694.76
  5. Step 5: Solve for x
    x = 16,956,704,694.76/171,222.72
  6. Step 6: Final answer
    x = 99,033.03

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1.5x scale

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.