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Finding the Fourth Proportional to 74,634.90, 111,806.55 and 44,964.60

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Solution

The fourth proportional to 74,634.90, 111,806.55 and 44,964.60 is: 67,359.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,634.90 : 111,806.55 = 44,964.60 : x
  2. Step 2: Convert to fraction form
    74,634.90/111,806.55 = 44,964.60/x
  3. Step 3: Cross multiply
    74,634.90x = 111,806.55 × 44,964.60
  4. Step 4: Simplify right side
    74,634.90x = 5,027,336,798.13
  5. Step 5: Solve for x
    x = 5,027,336,798.13/74,634.90
  6. Step 6: Final answer
    x = 67,359.06

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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.