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Finding the Fourth Proportional to 54,143.10, 81,105.30 and 54,143.10

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Solution

The fourth proportional to 54,143.10, 81,105.30 and 54,143.10 is: 81,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,143.10 : 81,105.30 = 54,143.10 : x
  2. Step 2: Convert to fraction form
    54,143.10/81,105.30 = 54,143.10/x
  3. Step 3: Cross multiply
    54,143.10x = 81,105.30 × 54,143.10
  4. Step 4: Simplify right side
    54,143.10x = 4,391,292,368.43
  5. Step 5: Solve for x
    x = 4,391,292,368.43/54,143.10
  6. Step 6: Final answer
    x = 81,105.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.