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Finding the Fourth Proportional to 68,773.20, 103,159.80 and 22,030.80

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Solution

The fourth proportional to 68,773.20, 103,159.80 and 22,030.80 is: 33,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,773.20 : 103,159.80 = 22,030.80 : x
  2. Step 2: Convert to fraction form
    68,773.20/103,159.80 = 22,030.80/x
  3. Step 3: Cross multiply
    68,773.20x = 103,159.80 × 22,030.80
  4. Step 4: Simplify right side
    68,773.20x = 2,272,692,921.84
  5. Step 5: Solve for x
    x = 2,272,692,921.84/68,773.20
  6. Step 6: Final answer
    x = 33,046.20

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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.