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Finding the Fourth Proportional to 111,424.96, 166,980.30 and 61,527.52

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Solution

The fourth proportional to 111,424.96, 166,980.30 and 61,527.52 is: 92,204.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,424.96 : 166,980.30 = 61,527.52 : x
  2. Step 2: Convert to fraction form
    111,424.96/166,980.30 = 61,527.52/x
  3. Step 3: Cross multiply
    111,424.96x = 166,980.30 × 61,527.52
  4. Step 4: Simplify right side
    111,424.96x = 10,273,883,747.86
  5. Step 5: Solve for x
    x = 10,273,883,747.86/111,424.96
  6. Step 6: Final answer
    x = 92,204.51

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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.