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Finding the Fourth Proportional to 70,604.74, 97,221.28 and 61,027.50

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Solution

The fourth proportional to 70,604.74, 97,221.28 and 61,027.50 is: 84,033.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,604.74 : 97,221.28 = 61,027.50 : x
  2. Step 2: Convert to fraction form
    70,604.74/97,221.28 = 61,027.50/x
  3. Step 3: Cross multiply
    70,604.74x = 97,221.28 × 61,027.50
  4. Step 4: Simplify right side
    70,604.74x = 5,933,171,665.20
  5. Step 5: Solve for x
    x = 5,933,171,665.20/70,604.74
  6. Step 6: Final answer
    x = 84,033.62

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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.