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Finding the Fourth Proportional to 54,081.81, 81,164.57 and 35,356.77

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Solution

The fourth proportional to 54,081.81, 81,164.57 and 35,356.77 is: 53,062.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,081.81 : 81,164.57 = 35,356.77 : x
  2. Step 2: Convert to fraction form
    54,081.81/81,164.57 = 35,356.77/x
  3. Step 3: Cross multiply
    54,081.81x = 81,164.57 × 35,356.77
  4. Step 4: Simplify right side
    54,081.81x = 2,869,716,856.86
  5. Step 5: Solve for x
    x = 2,869,716,856.86/54,081.81
  6. Step 6: Final answer
    x = 53,062.52

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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.