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Finding the Fourth Proportional to 161,683.98, 242,629.74 and 108,436.11

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Solution

The fourth proportional to 161,683.98, 242,629.74 and 108,436.11 is: 162,723.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,683.98 : 242,629.74 = 108,436.11 : x
  2. Step 2: Convert to fraction form
    161,683.98/242,629.74 = 108,436.11/x
  3. Step 3: Cross multiply
    161,683.98x = 242,629.74 × 108,436.11
  4. Step 4: Simplify right side
    161,683.98x = 26,309,825,175.91
  5. Step 5: Solve for x
    x = 26,309,825,175.91/161,683.98
  6. Step 6: Final answer
    x = 162,723.76

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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.