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Finding the Fourth Proportional to 171,719.49, 257,576.40 and 47,060.49

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Solution

The fourth proportional to 171,719.49, 257,576.40 and 47,060.49 is: 70,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,719.49 : 257,576.40 = 47,060.49 : x
  2. Step 2: Convert to fraction form
    171,719.49/257,576.40 = 47,060.49/x
  3. Step 3: Cross multiply
    171,719.49x = 257,576.40 × 47,060.49
  4. Step 4: Simplify right side
    171,719.49x = 12,121,671,596.44
  5. Step 5: Solve for x
    x = 12,121,671,596.44/171,719.49
  6. Step 6: Final answer
    x = 70,589.96

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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.