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Finding the Fourth Proportional to 273,624.93, 410,500.62 and 86,636.43

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Solution

The fourth proportional to 273,624.93, 410,500.62 and 86,636.43 is: 129,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,624.93 : 410,500.62 = 86,636.43 : x
  2. Step 2: Convert to fraction form
    273,624.93/410,500.62 = 86,636.43/x
  3. Step 3: Cross multiply
    273,624.93x = 410,500.62 × 86,636.43
  4. Step 4: Simplify right side
    273,624.93x = 35,564,308,229.59
  5. Step 5: Solve for x
    x = 35,564,308,229.59/273,624.93
  6. Step 6: Final answer
    x = 129,974.66

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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.