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Finding the Fourth Proportional to 111,017.60, 166,528 and 36,138.14

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Solution

The fourth proportional to 111,017.60, 166,528 and 36,138.14 is: 54,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,017.60 : 166,528 = 36,138.14 : x
  2. Step 2: Convert to fraction form
    111,017.60/166,528 = 36,138.14/x
  3. Step 3: Cross multiply
    111,017.60x = 166,528 × 36,138.14
  4. Step 4: Simplify right side
    111,017.60x = 6,018,012,177.92
  5. Step 5: Solve for x
    x = 6,018,012,177.92/111,017.60
  6. Step 6: Final answer
    x = 54,207.73

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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.