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Finding the Fourth Proportional to 40,101, 60,123.78 and 28,863.24

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Solution

The fourth proportional to 40,101, 60,123.78 and 28,863.24 is: 43,274.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,101 : 60,123.78 = 28,863.24 : x
  2. Step 2: Convert to fraction form
    40,101/60,123.78 = 28,863.24/x
  3. Step 3: Cross multiply
    40,101x = 60,123.78 × 28,863.24
  4. Step 4: Simplify right side
    40,101x = 1,735,367,091.85
  5. Step 5: Solve for x
    x = 1,735,367,091.85/40,101
  6. Step 6: Final answer
    x = 43,274.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.