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Finding the Fourth Proportional to 74,617.92, 111,472.80 and 53,389.44

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Solution

The fourth proportional to 74,617.92, 111,472.80 and 53,389.44 is: 79,759.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,617.92 : 111,472.80 = 53,389.44 : x
  2. Step 2: Convert to fraction form
    74,617.92/111,472.80 = 53,389.44/x
  3. Step 3: Cross multiply
    74,617.92x = 111,472.80 × 53,389.44
  4. Step 4: Simplify right side
    74,617.92x = 5,951,470,367.23
  5. Step 5: Solve for x
    x = 5,951,470,367.23/74,617.92
  6. Step 6: Final answer
    x = 79,759.26

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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.