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Finding the Fourth Proportional to 74,435, 111,513.84 and 36,952.40

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Solution

The fourth proportional to 74,435, 111,513.84 and 36,952.40 is: 55,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,435 : 111,513.84 = 36,952.40 : x
  2. Step 2: Convert to fraction form
    74,435/111,513.84 = 36,952.40/x
  3. Step 3: Cross multiply
    74,435x = 111,513.84 × 36,952.40
  4. Step 4: Simplify right side
    74,435x = 4,120,704,021.22
  5. Step 5: Solve for x
    x = 4,120,704,021.22/74,435
  6. Step 6: Final answer
    x = 55,359.76

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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.