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Finding the Fourth Proportional to 111,340.68, 166,969.56 and 44,758.40

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Solution

The fourth proportional to 111,340.68, 166,969.56 and 44,758.40 is: 67,120.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,340.68 : 166,969.56 = 44,758.40 : x
  2. Step 2: Convert to fraction form
    111,340.68/166,969.56 = 44,758.40/x
  3. Step 3: Cross multiply
    111,340.68x = 166,969.56 × 44,758.40
  4. Step 4: Simplify right side
    111,340.68x = 7,473,290,354.30
  5. Step 5: Solve for x
    x = 7,473,290,354.30/111,340.68
  6. Step 6: Final answer
    x = 67,120.93

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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.