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Finding the Fourth Proportional to 70,970.97, 106,530.26 and 52,272.12

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Solution

The fourth proportional to 70,970.97, 106,530.26 and 52,272.12 is: 78,462.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,970.97 : 106,530.26 = 52,272.12 : x
  2. Step 2: Convert to fraction form
    70,970.97/106,530.26 = 52,272.12/x
  3. Step 3: Cross multiply
    70,970.97x = 106,530.26 × 52,272.12
  4. Step 4: Simplify right side
    70,970.97x = 5,568,562,001.70
  5. Step 5: Solve for x
    x = 5,568,562,001.70/70,970.97
  6. Step 6: Final answer
    x = 78,462.54

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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.