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Finding the Fourth Proportional to 120,797.68, 166,673.96 and 73,050

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Solution

The fourth proportional to 120,797.68, 166,673.96 and 73,050 is: 100,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,797.68 : 166,673.96 = 73,050 : x
  2. Step 2: Convert to fraction form
    120,797.68/166,673.96 = 73,050/x
  3. Step 3: Cross multiply
    120,797.68x = 166,673.96 × 73,050
  4. Step 4: Simplify right side
    120,797.68x = 12,175,532,778
  5. Step 5: Solve for x
    x = 12,175,532,778/120,797.68
  6. Step 6: Final answer
    x = 100,792.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.