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Finding the Fourth Proportional to 73,201.20, 109,801.80 and 60,735.30

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Solution

The fourth proportional to 73,201.20, 109,801.80 and 60,735.30 is: 91,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,201.20 : 109,801.80 = 60,735.30 : x
  2. Step 2: Convert to fraction form
    73,201.20/109,801.80 = 60,735.30/x
  3. Step 3: Cross multiply
    73,201.20x = 109,801.80 × 60,735.30
  4. Step 4: Simplify right side
    73,201.20x = 6,668,845,263.54
  5. Step 5: Solve for x
    x = 6,668,845,263.54/73,201.20
  6. Step 6: Final answer
    x = 91,102.95

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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.