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Finding the Fourth Proportional to 54,752.45, 75,489.92 and 45,690.81

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Solution

The fourth proportional to 54,752.45, 75,489.92 and 45,690.81 is: 62,996.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,752.45 : 75,489.92 = 45,690.81 : x
  2. Step 2: Convert to fraction form
    54,752.45/75,489.92 = 45,690.81/x
  3. Step 3: Cross multiply
    54,752.45x = 75,489.92 × 45,690.81
  4. Step 4: Simplify right side
    54,752.45x = 3,449,195,363.18
  5. Step 5: Solve for x
    x = 3,449,195,363.18/54,752.45
  6. Step 6: Final answer
    x = 62,996.19

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Why These Related Problems?

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