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Finding the Fourth Proportional to 163,091.80, 244,407.30 and 120,640.60

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Solution

The fourth proportional to 163,091.80, 244,407.30 and 120,640.60 is: 180,790.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,091.80 : 244,407.30 = 120,640.60 : x
  2. Step 2: Convert to fraction form
    163,091.80/244,407.30 = 120,640.60/x
  3. Step 3: Cross multiply
    163,091.80x = 244,407.30 × 120,640.60
  4. Step 4: Simplify right side
    163,091.80x = 29,485,443,316.38
  5. Step 5: Solve for x
    x = 29,485,443,316.38/163,091.80
  6. Step 6: Final answer
    x = 180,790.47

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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.