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Finding the Fourth Proportional to 111,103.80, 166,509.90 and 44,489.40

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Solution

The fourth proportional to 111,103.80, 166,509.90 and 44,489.40 is: 66,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,103.80 : 166,509.90 = 44,489.40 : x
  2. Step 2: Convert to fraction form
    111,103.80/166,509.90 = 44,489.40/x
  3. Step 3: Cross multiply
    111,103.80x = 166,509.90 × 44,489.40
  4. Step 4: Simplify right side
    111,103.80x = 7,407,925,545.06
  5. Step 5: Solve for x
    x = 7,407,925,545.06/111,103.80
  6. Step 6: Final answer
    x = 66,675.72

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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.