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Finding the Fourth Proportional to 73,107.43, 109,639.06 and 38,027.95

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Solution

The fourth proportional to 73,107.43, 109,639.06 and 38,027.95 is: 57,030.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,107.43 : 109,639.06 = 38,027.95 : x
  2. Step 2: Convert to fraction form
    73,107.43/109,639.06 = 38,027.95/x
  3. Step 3: Cross multiply
    73,107.43x = 109,639.06 × 38,027.95
  4. Step 4: Simplify right side
    73,107.43x = 4,169,348,322.56
  5. Step 5: Solve for x
    x = 4,169,348,322.56/73,107.43
  6. Step 6: Final answer
    x = 57,030.43

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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.