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Finding the Fourth Proportional to 78,095.80, 107,769.90 and 44,105.68

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Solution

The fourth proportional to 78,095.80, 107,769.90 and 44,105.68 is: 60,864.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,095.80 : 107,769.90 = 44,105.68 : x
  2. Step 2: Convert to fraction form
    78,095.80/107,769.90 = 44,105.68/x
  3. Step 3: Cross multiply
    78,095.80x = 107,769.90 × 44,105.68
  4. Step 4: Simplify right side
    78,095.80x = 4,753,264,723.03
  5. Step 5: Solve for x
    x = 4,753,264,723.03/78,095.80
  6. Step 6: Final answer
    x = 60,864.54

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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.