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Finding the Fourth Proportional to 70,995.60, 106,451.28 and 62,694.72

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Solution

The fourth proportional to 70,995.60, 106,451.28 and 62,694.72 is: 94,004.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,995.60 : 106,451.28 = 62,694.72 : x
  2. Step 2: Convert to fraction form
    70,995.60/106,451.28 = 62,694.72/x
  3. Step 3: Cross multiply
    70,995.60x = 106,451.28 × 62,694.72
  4. Step 4: Simplify right side
    70,995.60x = 6,673,933,193.24
  5. Step 5: Solve for x
    x = 6,673,933,193.24/70,995.60
  6. Step 6: Final answer
    x = 94,004.88

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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.