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Finding the Fourth Proportional to 71,366.66, 106,754.12 and 54,371.06

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Solution

The fourth proportional to 71,366.66, 106,754.12 and 54,371.06 is: 81,331.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,366.66 : 106,754.12 = 54,371.06 : x
  2. Step 2: Convert to fraction form
    71,366.66/106,754.12 = 54,371.06/x
  3. Step 3: Cross multiply
    71,366.66x = 106,754.12 × 54,371.06
  4. Step 4: Simplify right side
    71,366.66x = 5,804,335,066.58
  5. Step 5: Solve for x
    x = 5,804,335,066.58/71,366.66
  6. Step 6: Final answer
    x = 81,331.19

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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.