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Finding the Fourth Proportional to 54,134.40, 81,086.40 and 44,918.40

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Solution

The fourth proportional to 54,134.40, 81,086.40 and 44,918.40 is: 67,282.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,134.40 : 81,086.40 = 44,918.40 : x
  2. Step 2: Convert to fraction form
    54,134.40/81,086.40 = 44,918.40/x
  3. Step 3: Cross multiply
    54,134.40x = 81,086.40 × 44,918.40
  4. Step 4: Simplify right side
    54,134.40x = 3,642,271,349.76
  5. Step 5: Solve for x
    x = 3,642,271,349.76/54,134.40
  6. Step 6: Final answer
    x = 67,282.01

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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.