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Finding the Fourth Proportional to 78,192.43, 107,907.21 and 44,198.89

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Solution

The fourth proportional to 78,192.43, 107,907.21 and 44,198.89 is: 60,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,192.43 : 107,907.21 = 44,198.89 : x
  2. Step 2: Convert to fraction form
    78,192.43/107,907.21 = 44,198.89/x
  3. Step 3: Cross multiply
    78,192.43x = 107,907.21 × 44,198.89
  4. Step 4: Simplify right side
    78,192.43x = 4,769,378,905.00
  5. Step 5: Solve for x
    x = 4,769,378,905.00/78,192.43
  6. Step 6: Final answer
    x = 60,995.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.