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Finding the Fourth Proportional to 111,426.59, 166,982.74 and 61,529.15

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Solution

The fourth proportional to 111,426.59, 166,982.74 and 61,529.15 is: 92,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,426.59 : 166,982.74 = 61,529.15 : x
  2. Step 2: Convert to fraction form
    111,426.59/166,982.74 = 61,529.15/x
  3. Step 3: Cross multiply
    111,426.59x = 166,982.74 × 61,529.15
  4. Step 4: Simplify right side
    111,426.59x = 10,274,305,068.13
  5. Step 5: Solve for x
    x = 10,274,305,068.13/111,426.59
  6. Step 6: Final answer
    x = 92,206.95

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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.