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Finding the Fourth Proportional to 171,777.66, 257,704.68 and 70,575.54

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Solution

The fourth proportional to 171,777.66, 257,704.68 and 70,575.54 is: 105,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,777.66 : 257,704.68 = 70,575.54 : x
  2. Step 2: Convert to fraction form
    171,777.66/257,704.68 = 70,575.54/x
  3. Step 3: Cross multiply
    171,777.66x = 257,704.68 × 70,575.54
  4. Step 4: Simplify right side
    171,777.66x = 18,187,646,951.53
  5. Step 5: Solve for x
    x = 18,187,646,951.53/171,777.66
  6. Step 6: Final answer
    x = 105,879.00

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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.