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Finding the Fourth Proportional to 126,523.60, 189,785.40 and 124,680.40

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Solution

The fourth proportional to 126,523.60, 189,785.40 and 124,680.40 is: 187,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,523.60 : 189,785.40 = 124,680.40 : x
  2. Step 2: Convert to fraction form
    126,523.60/189,785.40 = 124,680.40/x
  3. Step 3: Cross multiply
    126,523.60x = 189,785.40 × 124,680.40
  4. Step 4: Simplify right side
    126,523.60x = 23,662,519,586.16
  5. Step 5: Solve for x
    x = 23,662,519,586.16/126,523.60
  6. Step 6: Final answer
    x = 187,020.60

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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.