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Finding the Fourth Proportional to 186,121.82, 256,992.28 and 143,033.06

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Solution

The fourth proportional to 186,121.82, 256,992.28 and 143,033.06 is: 197,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,121.82 : 256,992.28 = 143,033.06 : x
  2. Step 2: Convert to fraction form
    186,121.82/256,992.28 = 143,033.06/x
  3. Step 3: Cross multiply
    186,121.82x = 256,992.28 × 143,033.06
  4. Step 4: Simplify right side
    186,121.82x = 36,758,392,204.78
  5. Step 5: Solve for x
    x = 36,758,392,204.78/186,121.82
  6. Step 6: Final answer
    x = 197,496.42

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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.