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Finding the Fourth Proportional to 79,382.64, 119,073.94 and 23,978.64

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Solution

The fourth proportional to 79,382.64, 119,073.94 and 23,978.64 is: 35,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,382.64 : 119,073.94 = 23,978.64 : x
  2. Step 2: Convert to fraction form
    79,382.64/119,073.94 = 23,978.64/x
  3. Step 3: Cross multiply
    79,382.64x = 119,073.94 × 23,978.64
  4. Step 4: Simplify right side
    79,382.64x = 2,855,231,140.64
  5. Step 5: Solve for x
    x = 2,855,231,140.64/79,382.64
  6. Step 6: Final answer
    x = 35,967.95

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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.