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Finding the Fourth Proportional to 126,497.34, 189,718.08 and 36,520.52

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Solution

The fourth proportional to 126,497.34, 189,718.08 and 36,520.52 is: 54,772.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,497.34 : 189,718.08 = 36,520.52 : x
  2. Step 2: Convert to fraction form
    126,497.34/189,718.08 = 36,520.52/x
  3. Step 3: Cross multiply
    126,497.34x = 189,718.08 × 36,520.52
  4. Step 4: Simplify right side
    126,497.34x = 6,928,601,986.41
  5. Step 5: Solve for x
    x = 6,928,601,986.41/126,497.34
  6. Step 6: Final answer
    x = 54,772.71

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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.