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Finding the Fourth Proportional to 186,235.50, 256,960.17 and 109,757.64

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Solution

The fourth proportional to 186,235.50, 256,960.17 and 109,757.64 is: 151,439.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,235.50 : 256,960.17 = 109,757.64 : x
  2. Step 2: Convert to fraction form
    186,235.50/256,960.17 = 109,757.64/x
  3. Step 3: Cross multiply
    186,235.50x = 256,960.17 × 109,757.64
  4. Step 4: Simplify right side
    186,235.50x = 28,203,341,833.20
  5. Step 5: Solve for x
    x = 28,203,341,833.20/186,235.50
  6. Step 6: Final answer
    x = 151,439.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.