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Finding the Fourth Proportional to 111,074.72, 166,266.57 and 60,346.90

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Solution

The fourth proportional to 111,074.72, 166,266.57 and 60,346.90 is: 90,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,074.72 : 166,266.57 = 60,346.90 : x
  2. Step 2: Convert to fraction form
    111,074.72/166,266.57 = 60,346.90/x
  3. Step 3: Cross multiply
    111,074.72x = 166,266.57 × 60,346.90
  4. Step 4: Simplify right side
    111,074.72x = 10,033,672,073.13
  5. Step 5: Solve for x
    x = 10,033,672,073.13/111,074.72
  6. Step 6: Final answer
    x = 90,332.63

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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.