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Finding the Fourth Proportional to 74,599.20, 111,898.80 and 22,008.60

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Solution

The fourth proportional to 74,599.20, 111,898.80 and 22,008.60 is: 33,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,599.20 : 111,898.80 = 22,008.60 : x
  2. Step 2: Convert to fraction form
    74,599.20/111,898.80 = 22,008.60/x
  3. Step 3: Cross multiply
    74,599.20x = 111,898.80 × 22,008.60
  4. Step 4: Simplify right side
    74,599.20x = 2,462,735,929.68
  5. Step 5: Solve for x
    x = 2,462,735,929.68/74,599.20
  6. Step 6: Final answer
    x = 33,012.90

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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.