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Finding the Fourth Proportional to 70,691.94, 106,012.80 and 23,295.60

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Solution

The fourth proportional to 70,691.94, 106,012.80 and 23,295.60 is: 34,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,691.94 : 106,012.80 = 23,295.60 : x
  2. Step 2: Convert to fraction form
    70,691.94/106,012.80 = 23,295.60/x
  3. Step 3: Cross multiply
    70,691.94x = 106,012.80 × 23,295.60
  4. Step 4: Simplify right side
    70,691.94x = 2,469,631,783.68
  5. Step 5: Solve for x
    x = 2,469,631,783.68/70,691.94
  6. Step 6: Final answer
    x = 34,935.13

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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.