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Finding the Fourth Proportional to 111,709.76, 167,528.84 and 36,813.12

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Solution

The fourth proportional to 111,709.76, 167,528.84 and 36,813.12 is: 55,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,709.76 : 167,528.84 = 36,813.12 : x
  2. Step 2: Convert to fraction form
    111,709.76/167,528.84 = 36,813.12/x
  3. Step 3: Cross multiply
    111,709.76x = 167,528.84 × 36,813.12
  4. Step 4: Simplify right side
    111,709.76x = 6,167,259,290.38
  5. Step 5: Solve for x
    x = 6,167,259,290.38/111,709.76
  6. Step 6: Final answer
    x = 55,207.88

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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.