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Finding the Fourth Proportional to 70,665.75, 105,977.52 and 23,272.11

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Solution

The fourth proportional to 70,665.75, 105,977.52 and 23,272.11 is: 34,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,665.75 : 105,977.52 = 23,272.11 : x
  2. Step 2: Convert to fraction form
    70,665.75/105,977.52 = 23,272.11/x
  3. Step 3: Cross multiply
    70,665.75x = 105,977.52 × 23,272.11
  4. Step 4: Simplify right side
    70,665.75x = 2,466,320,502.97
  5. Step 5: Solve for x
    x = 2,466,320,502.97/70,665.75
  6. Step 6: Final answer
    x = 34,901.21

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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.