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Finding the Fourth Proportional to 92,568.19, 138,758.80 and 36,447.69

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Solution

The fourth proportional to 92,568.19, 138,758.80 and 36,447.69 is: 54,634.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,568.19 : 138,758.80 = 36,447.69 : x
  2. Step 2: Convert to fraction form
    92,568.19/138,758.80 = 36,447.69/x
  3. Step 3: Cross multiply
    92,568.19x = 138,758.80 × 36,447.69
  4. Step 4: Simplify right side
    92,568.19x = 5,057,437,727.17
  5. Step 5: Solve for x
    x = 5,057,437,727.17/92,568.19
  6. Step 6: Final answer
    x = 54,634.73

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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.