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Finding the Fourth Proportional to 186,959.80, 280,439.70 and 53,844.40

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Solution

The fourth proportional to 186,959.80, 280,439.70 and 53,844.40 is: 80,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,959.80 : 280,439.70 = 53,844.40 : x
  2. Step 2: Convert to fraction form
    186,959.80/280,439.70 = 53,844.40/x
  3. Step 3: Cross multiply
    186,959.80x = 280,439.70 × 53,844.40
  4. Step 4: Simplify right side
    186,959.80x = 15,100,107,382.68
  5. Step 5: Solve for x
    x = 15,100,107,382.68/186,959.80
  6. Step 6: Final answer
    x = 80,766.60

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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.