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Finding the Fourth Proportional to 96,620.80, 144,945.60 and 34,286.08

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Solution

The fourth proportional to 96,620.80, 144,945.60 and 34,286.08 is: 51,434.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,620.80 : 144,945.60 = 34,286.08 : x
  2. Step 2: Convert to fraction form
    96,620.80/144,945.60 = 34,286.08/x
  3. Step 3: Cross multiply
    96,620.80x = 144,945.60 × 34,286.08
  4. Step 4: Simplify right side
    96,620.80x = 4,969,616,437.25
  5. Step 5: Solve for x
    x = 4,969,616,437.25/96,620.80
  6. Step 6: Final answer
    x = 51,434.23

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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.