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Finding the Fourth Proportional to 73,892.80, 110,839.20 and 44,295.40

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Solution

The fourth proportional to 73,892.80, 110,839.20 and 44,295.40 is: 66,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,892.80 : 110,839.20 = 44,295.40 : x
  2. Step 2: Convert to fraction form
    73,892.80/110,839.20 = 44,295.40/x
  3. Step 3: Cross multiply
    73,892.80x = 110,839.20 × 44,295.40
  4. Step 4: Simplify right side
    73,892.80x = 4,909,666,699.68
  5. Step 5: Solve for x
    x = 4,909,666,699.68/73,892.80
  6. Step 6: Final answer
    x = 66,443.10

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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.