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Finding the Fourth Proportional to 78,818.88, 108,772.44 and 44,832.24

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Solution

The fourth proportional to 78,818.88, 108,772.44 and 44,832.24 is: 61,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,818.88 : 108,772.44 = 44,832.24 : x
  2. Step 2: Convert to fraction form
    78,818.88/108,772.44 = 44,832.24/x
  3. Step 3: Cross multiply
    78,818.88x = 108,772.44 × 44,832.24
  4. Step 4: Simplify right side
    78,818.88x = 4,876,512,135.47
  5. Step 5: Solve for x
    x = 4,876,512,135.47/78,818.88
  6. Step 6: Final answer
    x = 61,869.85

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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.