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Finding the Fourth Proportional to 52,991.75, 73,133.71 and 30,326.22

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Solution

The fourth proportional to 52,991.75, 73,133.71 and 30,326.22 is: 41,853.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,991.75 : 73,133.71 = 30,326.22 : x
  2. Step 2: Convert to fraction form
    52,991.75/73,133.71 = 30,326.22/x
  3. Step 3: Cross multiply
    52,991.75x = 73,133.71 × 30,326.22
  4. Step 4: Simplify right side
    52,991.75x = 2,217,868,903.06
  5. Step 5: Solve for x
    x = 2,217,868,903.06/52,991.75
  6. Step 6: Final answer
    x = 41,853.10

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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.