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Finding the Fourth Proportional to 77,611.50, 107,104.01 and 44,077.50

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Solution

The fourth proportional to 77,611.50, 107,104.01 and 44,077.50 is: 60,827.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,611.50 : 107,104.01 = 44,077.50 : x
  2. Step 2: Convert to fraction form
    77,611.50/107,104.01 = 44,077.50/x
  3. Step 3: Cross multiply
    77,611.50x = 107,104.01 × 44,077.50
  4. Step 4: Simplify right side
    77,611.50x = 4,720,876,780.39
  5. Step 5: Solve for x
    x = 4,720,876,780.39/77,611.50
  6. Step 6: Final answer
    x = 60,827.03

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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.