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Finding the Fourth Proportional to 74,037.80, 110,983.80 and 36,603.65

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Solution

The fourth proportional to 74,037.80, 110,983.80 and 36,603.65 is: 54,869.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,037.80 : 110,983.80 = 36,603.65 : x
  2. Step 2: Convert to fraction form
    74,037.80/110,983.80 = 36,603.65/x
  3. Step 3: Cross multiply
    74,037.80x = 110,983.80 × 36,603.65
  4. Step 4: Simplify right side
    74,037.80x = 4,062,412,170.87
  5. Step 5: Solve for x
    x = 4,062,412,170.87/74,037.80
  6. Step 6: Final answer
    x = 54,869.43

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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.