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Finding the Fourth Proportional to 54,143.83, 81,215.81 and 14,700.95

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Solution

The fourth proportional to 54,143.83, 81,215.81 and 14,700.95 is: 22,051.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,143.83 : 81,215.81 = 14,700.95 : x
  2. Step 2: Convert to fraction form
    54,143.83/81,215.81 = 14,700.95/x
  3. Step 3: Cross multiply
    54,143.83x = 81,215.81 × 14,700.95
  4. Step 4: Simplify right side
    54,143.83x = 1,193,949,562.02
  5. Step 5: Solve for x
    x = 1,193,949,562.02/54,143.83
  6. Step 6: Final answer
    x = 22,051.44

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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.