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Finding the Fourth Proportional to 72,324.30, 107,944.23 and 67,600.38

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Solution

The fourth proportional to 72,324.30, 107,944.23 and 67,600.38 is: 100,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,324.30 : 107,944.23 = 67,600.38 : x
  2. Step 2: Convert to fraction form
    72,324.30/107,944.23 = 67,600.38/x
  3. Step 3: Cross multiply
    72,324.30x = 107,944.23 × 67,600.38
  4. Step 4: Simplify right side
    72,324.30x = 7,297,070,966.81
  5. Step 5: Solve for x
    x = 7,297,070,966.81/72,324.30
  6. Step 6: Final answer
    x = 100,893.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.