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Finding the Fourth Proportional to 186,872.38, 280,324.77 and 53,763.46

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Solution

The fourth proportional to 186,872.38, 280,324.77 and 53,763.46 is: 80,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,872.38 : 280,324.77 = 53,763.46 : x
  2. Step 2: Convert to fraction form
    186,872.38/280,324.77 = 53,763.46/x
  3. Step 3: Cross multiply
    186,872.38x = 280,324.77 × 53,763.46
  4. Step 4: Simplify right side
    186,872.38x = 15,071,229,558.90
  5. Step 5: Solve for x
    x = 15,071,229,558.90/186,872.38
  6. Step 6: Final answer
    x = 80,649.85

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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.