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Finding the Fourth Proportional to 77,611.68, 107,105.76 and 44,076.96

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Solution

The fourth proportional to 77,611.68, 107,105.76 and 44,076.96 is: 60,827.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,611.68 : 107,105.76 = 44,076.96 : x
  2. Step 2: Convert to fraction form
    77,611.68/107,105.76 = 44,076.96/x
  3. Step 3: Cross multiply
    77,611.68x = 107,105.76 × 44,076.96
  4. Step 4: Simplify right side
    77,611.68x = 4,720,896,299.29
  5. Step 5: Solve for x
    x = 4,720,896,299.29/77,611.68
  6. Step 6: Final answer
    x = 60,827.14

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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.