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Finding the Fourth Proportional to 117,955.92, 162,772.56 and 66,954.96

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Solution

The fourth proportional to 117,955.92, 162,772.56 and 66,954.96 is: 92,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,955.92 : 162,772.56 = 66,954.96 : x
  2. Step 2: Convert to fraction form
    117,955.92/162,772.56 = 66,954.96/x
  3. Step 3: Cross multiply
    117,955.92x = 162,772.56 × 66,954.96
  4. Step 4: Simplify right side
    117,955.92x = 10,898,430,243.90
  5. Step 5: Solve for x
    x = 10,898,430,243.90/117,955.92
  6. Step 6: Final answer
    x = 92,394.09

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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.