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Finding the Fourth Proportional to 117,938.94, 162,754.12 and 66,951.23

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Solution

The fourth proportional to 117,938.94, 162,754.12 and 66,951.23 is: 92,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,938.94 : 162,754.12 = 66,951.23 : x
  2. Step 2: Convert to fraction form
    117,938.94/162,754.12 = 66,951.23/x
  3. Step 3: Cross multiply
    117,938.94x = 162,754.12 × 66,951.23
  4. Step 4: Simplify right side
    117,938.94x = 10,896,587,540.42
  5. Step 5: Solve for x
    x = 10,896,587,540.42/117,938.94
  6. Step 6: Final answer
    x = 92,391.77

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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.