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Finding the Fourth Proportional to 186,989.77, 280,586.71 and 108,257.77

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Solution

The fourth proportional to 186,989.77, 280,586.71 and 108,257.77 is: 162,445.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,989.77 : 280,586.71 = 108,257.77 : x
  2. Step 2: Convert to fraction form
    186,989.77/280,586.71 = 108,257.77/x
  3. Step 3: Cross multiply
    186,989.77x = 280,586.71 × 108,257.77
  4. Step 4: Simplify right side
    186,989.77x = 30,375,691,516.24
  5. Step 5: Solve for x
    x = 30,375,691,516.24/186,989.77
  6. Step 6: Final answer
    x = 162,445.74

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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.