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Finding the Fourth Proportional to 91,859.38, 137,735.44 and 35,633.79

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Solution

The fourth proportional to 91,859.38, 137,735.44 and 35,633.79 is: 53,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,859.38 : 137,735.44 = 35,633.79 : x
  2. Step 2: Convert to fraction form
    91,859.38/137,735.44 = 35,633.79/x
  3. Step 3: Cross multiply
    91,859.38x = 137,735.44 × 35,633.79
  4. Step 4: Simplify right side
    91,859.38x = 4,908,035,855.87
  5. Step 5: Solve for x
    x = 4,908,035,855.87/91,859.38
  6. Step 6: Final answer
    x = 53,429.88

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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.