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Finding the Fourth Proportional to 186,882.80, 280,324.20 and 154,077.80

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Solution

The fourth proportional to 186,882.80, 280,324.20 and 154,077.80 is: 231,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,882.80 : 280,324.20 = 154,077.80 : x
  2. Step 2: Convert to fraction form
    186,882.80/280,324.20 = 154,077.80/x
  3. Step 3: Cross multiply
    186,882.80x = 280,324.20 × 154,077.80
  4. Step 4: Simplify right side
    186,882.80x = 43,191,736,022.76
  5. Step 5: Solve for x
    x = 43,191,736,022.76/186,882.80
  6. Step 6: Final answer
    x = 231,116.70

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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.