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Finding the Fourth Proportional to 171,936.32, 257,568.97 and 112,592.07

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Solution

The fourth proportional to 171,936.32, 257,568.97 and 112,592.07 is: 168,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,936.32 : 257,568.97 = 112,592.07 : x
  2. Step 2: Convert to fraction form
    171,936.32/257,568.97 = 112,592.07/x
  3. Step 3: Cross multiply
    171,936.32x = 257,568.97 × 112,592.07
  4. Step 4: Simplify right side
    171,936.32x = 29,000,223,500.07
  5. Step 5: Solve for x
    x = 29,000,223,500.07/171,936.32
  6. Step 6: Final answer
    x = 168,668.40

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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.