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Finding the Fourth Proportional to 136,091.97, 187,813.17 and 75,668.82

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Solution

The fourth proportional to 136,091.97, 187,813.17 and 75,668.82 is: 104,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,091.97 : 187,813.17 = 75,668.82 : x
  2. Step 2: Convert to fraction form
    136,091.97/187,813.17 = 75,668.82/x
  3. Step 3: Cross multiply
    136,091.97x = 187,813.17 × 75,668.82
  4. Step 4: Simplify right side
    136,091.97x = 14,211,600,954.36
  5. Step 5: Solve for x
    x = 14,211,600,954.36/136,091.97
  6. Step 6: Final answer
    x = 104,426.45

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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.