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Finding the Fourth Proportional to 120,767.99, 166,665.03 and 67,053.01

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Solution

The fourth proportional to 120,767.99, 166,665.03 and 67,053.01 is: 92,536.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,767.99 : 166,665.03 = 67,053.01 : x
  2. Step 2: Convert to fraction form
    120,767.99/166,665.03 = 67,053.01/x
  3. Step 3: Cross multiply
    120,767.99x = 166,665.03 × 67,053.01
  4. Step 4: Simplify right side
    120,767.99x = 11,175,391,923.24
  5. Step 5: Solve for x
    x = 11,175,391,923.24/120,767.99
  6. Step 6: Final answer
    x = 92,536.04

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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.