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Finding the Fourth Proportional to 132,512.80, 198,477.60 and 117,738.40

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Solution

The fourth proportional to 132,512.80, 198,477.60 and 117,738.40 is: 176,348.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,512.80 : 198,477.60 = 117,738.40 : x
  2. Step 2: Convert to fraction form
    132,512.80/198,477.60 = 117,738.40/x
  3. Step 3: Cross multiply
    132,512.80x = 198,477.60 × 117,738.40
  4. Step 4: Simplify right side
    132,512.80x = 23,368,435,059.84
  5. Step 5: Solve for x
    x = 23,368,435,059.84/132,512.80
  6. Step 6: Final answer
    x = 176,348.51

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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.