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Finding the Fourth Proportional to 106,732.55, 160,098.81 and 40,187.60

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Solution

The fourth proportional to 106,732.55, 160,098.81 and 40,187.60 is: 60,281.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,732.55 : 160,098.81 = 40,187.60 : x
  2. Step 2: Convert to fraction form
    106,732.55/160,098.81 = 40,187.60/x
  3. Step 3: Cross multiply
    106,732.55x = 160,098.81 × 40,187.60
  4. Step 4: Simplify right side
    106,732.55x = 6,433,986,136.26
  5. Step 5: Solve for x
    x = 6,433,986,136.26/106,732.55
  6. Step 6: Final answer
    x = 60,281.39

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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.