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Finding the Fourth Proportional to 227,653.27, 341,516.86 and 85,509.61

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Solution

The fourth proportional to 227,653.27, 341,516.86 and 85,509.61 is: 128,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,653.27 : 341,516.86 = 85,509.61 : x
  2. Step 2: Convert to fraction form
    227,653.27/341,516.86 = 85,509.61/x
  3. Step 3: Cross multiply
    227,653.27x = 341,516.86 × 85,509.61
  4. Step 4: Simplify right side
    227,653.27x = 29,202,972,439.46
  5. Step 5: Solve for x
    x = 29,202,972,439.46/227,653.27
  6. Step 6: Final answer
    x = 128,278.29

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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.