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Finding the Fourth Proportional to 74,156.94, 111,253.68 and 21,566.88

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Solution

The fourth proportional to 74,156.94, 111,253.68 and 21,566.88 is: 32,355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,156.94 : 111,253.68 = 21,566.88 : x
  2. Step 2: Convert to fraction form
    74,156.94/111,253.68 = 21,566.88/x
  3. Step 3: Cross multiply
    74,156.94x = 111,253.68 × 21,566.88
  4. Step 4: Simplify right side
    74,156.94x = 2,399,394,766.12
  5. Step 5: Solve for x
    x = 2,399,394,766.12/74,156.94
  6. Step 6: Final answer
    x = 32,355.63

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1.5x scale

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.