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Finding the Fourth Proportional to 171,950.70, 257,926.05 and 112,164.60

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Solution

The fourth proportional to 171,950.70, 257,926.05 and 112,164.60 is: 168,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,950.70 : 257,926.05 = 112,164.60 : x
  2. Step 2: Convert to fraction form
    171,950.70/257,926.05 = 112,164.60/x
  3. Step 3: Cross multiply
    171,950.70x = 257,926.05 × 112,164.60
  4. Step 4: Simplify right side
    171,950.70x = 28,930,172,227.83
  5. Step 5: Solve for x
    x = 28,930,172,227.83/171,950.70
  6. Step 6: Final answer
    x = 168,246.90

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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.