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Finding the Fourth Proportional to 54,643.68, 75,409.38 and 33,133.32

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Solution

The fourth proportional to 54,643.68, 75,409.38 and 33,133.32 is: 45,724.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,643.68 : 75,409.38 = 33,133.32 : x
  2. Step 2: Convert to fraction form
    54,643.68/75,409.38 = 33,133.32/x
  3. Step 3: Cross multiply
    54,643.68x = 75,409.38 × 33,133.32
  4. Step 4: Simplify right side
    54,643.68x = 2,498,563,118.54
  5. Step 5: Solve for x
    x = 2,498,563,118.54/54,643.68
  6. Step 6: Final answer
    x = 45,724.65

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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.