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Finding the Fourth Proportional to 79,097.92, 109,104.74 and 55,215.88

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Solution

The fourth proportional to 79,097.92, 109,104.74 and 55,215.88 is: 76,162.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,097.92 : 109,104.74 = 55,215.88 : x
  2. Step 2: Convert to fraction form
    79,097.92/109,104.74 = 55,215.88/x
  3. Step 3: Cross multiply
    79,097.92x = 109,104.74 × 55,215.88
  4. Step 4: Simplify right side
    79,097.92x = 6,024,313,889.49
  5. Step 5: Solve for x
    x = 6,024,313,889.49/79,097.92
  6. Step 6: Final answer
    x = 76,162.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.