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Finding the Fourth Proportional to 65,322.84, 90,190.04 and 43,844.80

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Solution

The fourth proportional to 65,322.84, 90,190.04 and 43,844.80 is: 60,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,322.84 : 90,190.04 = 43,844.80 : x
  2. Step 2: Convert to fraction form
    65,322.84/90,190.04 = 43,844.80/x
  3. Step 3: Cross multiply
    65,322.84x = 90,190.04 × 43,844.80
  4. Step 4: Simplify right side
    65,322.84x = 3,954,364,265.79
  5. Step 5: Solve for x
    x = 3,954,364,265.79/65,322.84
  6. Step 6: Final answer
    x = 60,535.71

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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.