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Finding the Fourth Proportional to 171,704.40, 257,247.69 and 161,575.56

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Solution

The fourth proportional to 171,704.40, 257,247.69 and 161,575.56 is: 242,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,704.40 : 257,247.69 = 161,575.56 : x
  2. Step 2: Convert to fraction form
    171,704.40/257,247.69 = 161,575.56/x
  3. Step 3: Cross multiply
    171,704.40x = 257,247.69 × 161,575.56
  4. Step 4: Simplify right side
    171,704.40x = 41,564,939,570.46
  5. Step 5: Solve for x
    x = 41,564,939,570.46/171,704.40
  6. Step 6: Final answer
    x = 242,072.65

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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.