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Finding the Fourth Proportional to 111,462.73, 166,908.64 and 61,487.28

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Solution

The fourth proportional to 111,462.73, 166,908.64 and 61,487.28 is: 92,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,462.73 : 166,908.64 = 61,487.28 : x
  2. Step 2: Convert to fraction form
    111,462.73/166,908.64 = 61,487.28/x
  3. Step 3: Cross multiply
    111,462.73x = 166,908.64 × 61,487.28
  4. Step 4: Simplify right side
    111,462.73x = 10,262,757,140.12
  5. Step 5: Solve for x
    x = 10,262,757,140.12/111,462.73
  6. Step 6: Final answer
    x = 92,073.45

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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.