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Finding the Fourth Proportional to 111,057.52, 166,651.44 and 40,985.68

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Solution

The fourth proportional to 111,057.52, 166,651.44 and 40,985.68 is: 61,502.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,057.52 : 166,651.44 = 40,985.68 : x
  2. Step 2: Convert to fraction form
    111,057.52/166,651.44 = 40,985.68/x
  3. Step 3: Cross multiply
    111,057.52x = 166,651.44 × 40,985.68
  4. Step 4: Simplify right side
    111,057.52x = 6,830,322,591.38
  5. Step 5: Solve for x
    x = 6,830,322,591.38/111,057.52
  6. Step 6: Final answer
    x = 61,502.57

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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.