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Finding the Fourth Proportional to 54,744.20, 75,479.88 and 45,019.68

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Solution

The fourth proportional to 54,744.20, 75,479.88 and 45,019.68 is: 62,071.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,744.20 : 75,479.88 = 45,019.68 : x
  2. Step 2: Convert to fraction form
    54,744.20/75,479.88 = 45,019.68/x
  3. Step 3: Cross multiply
    54,744.20x = 75,479.88 × 45,019.68
  4. Step 4: Simplify right side
    54,744.20x = 3,398,080,044.04
  5. Step 5: Solve for x
    x = 3,398,080,044.04/54,744.20
  6. Step 6: Final answer
    x = 62,071.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.