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Finding the Fourth Proportional to 186,205.77, 279,142.54 and 154,872.88

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Solution

The fourth proportional to 186,205.77, 279,142.54 and 154,872.88 is: 232,171.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,205.77 : 279,142.54 = 154,872.88 : x
  2. Step 2: Convert to fraction form
    186,205.77/279,142.54 = 154,872.88/x
  3. Step 3: Cross multiply
    186,205.77x = 279,142.54 × 154,872.88
  4. Step 4: Simplify right side
    186,205.77x = 43,231,608,015.28
  5. Step 5: Solve for x
    x = 43,231,608,015.28/186,205.77
  6. Step 6: Final answer
    x = 232,171.15

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1.5x scale

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.