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Finding the Fourth Proportional to 171,824.37, 257,401.30 and 112,480.13

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Solution

The fourth proportional to 171,824.37, 257,401.30 and 112,480.13 is: 168,500.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,824.37 : 257,401.30 = 112,480.13 : x
  2. Step 2: Convert to fraction form
    171,824.37/257,401.30 = 112,480.13/x
  3. Step 3: Cross multiply
    171,824.37x = 257,401.30 × 112,480.13
  4. Step 4: Simplify right side
    171,824.37x = 28,952,530,399.16
  5. Step 5: Solve for x
    x = 28,952,530,399.16/171,824.37
  6. Step 6: Final answer
    x = 168,500.72

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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.