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Finding the Fourth Proportional to 136,383.67, 188,206.21 and 75,952.97

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Solution

The fourth proportional to 136,383.67, 188,206.21 and 75,952.97 is: 104,813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,383.67 : 188,206.21 = 75,952.97 : x
  2. Step 2: Convert to fraction form
    136,383.67/188,206.21 = 75,952.97/x
  3. Step 3: Cross multiply
    136,383.67x = 188,206.21 × 75,952.97
  4. Step 4: Simplify right side
    136,383.67x = 14,294,820,621.94
  5. Step 5: Solve for x
    x = 14,294,820,621.94/136,383.67
  6. Step 6: Final answer
    x = 104,813.29

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1.5x scale

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.