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Finding the Fourth Proportional to 166,991.63, 250,518.83 and 67,159.53

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Solution

The fourth proportional to 166,991.63, 250,518.83 and 67,159.53 is: 100,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,991.63 : 250,518.83 = 67,159.53 : x
  2. Step 2: Convert to fraction form
    166,991.63/250,518.83 = 67,159.53/x
  3. Step 3: Cross multiply
    166,991.63x = 250,518.83 × 67,159.53
  4. Step 4: Simplify right side
    166,991.63x = 16,824,726,543.15
  5. Step 5: Solve for x
    x = 16,824,726,543.15/166,991.63
  6. Step 6: Final answer
    x = 100,751.92

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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.