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Finding the Fourth Proportional to 221,083.57, 304,786.39 and 186,955.14

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Solution

The fourth proportional to 221,083.57, 304,786.39 and 186,955.14 is: 257,736.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,083.57 : 304,786.39 = 186,955.14 : x
  2. Step 2: Convert to fraction form
    221,083.57/304,786.39 = 186,955.14/x
  3. Step 3: Cross multiply
    221,083.57x = 304,786.39 × 186,955.14
  4. Step 4: Simplify right side
    221,083.57x = 56,981,382,212.54
  5. Step 5: Solve for x
    x = 56,981,382,212.54/221,083.57
  6. Step 6: Final answer
    x = 257,736.85

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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.