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Finding the Fourth Proportional to 73,539.90, 110,164.05 and 40,200.30

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Solution

The fourth proportional to 73,539.90, 110,164.05 and 40,200.30 is: 60,220.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,539.90 : 110,164.05 = 40,200.30 : x
  2. Step 2: Convert to fraction form
    73,539.90/110,164.05 = 40,200.30/x
  3. Step 3: Cross multiply
    73,539.90x = 110,164.05 × 40,200.30
  4. Step 4: Simplify right side
    73,539.90x = 4,428,627,859.22
  5. Step 5: Solve for x
    x = 4,428,627,859.22/73,539.90
  6. Step 6: Final answer
    x = 60,220.75

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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.