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Finding the Fourth Proportional to 79,380.64, 119,070.94 and 23,976.64

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Solution

The fourth proportional to 79,380.64, 119,070.94 and 23,976.64 is: 35,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,380.64 : 119,070.94 = 23,976.64 : x
  2. Step 2: Convert to fraction form
    79,380.64/119,070.94 = 23,976.64/x
  3. Step 3: Cross multiply
    79,380.64x = 119,070.94 × 23,976.64
  4. Step 4: Simplify right side
    79,380.64x = 2,854,921,062.84
  5. Step 5: Solve for x
    x = 2,854,921,062.84/79,380.64
  6. Step 6: Final answer
    x = 35,964.95

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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.