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Finding the Fourth Proportional to 220,137.20, 329,914.20 and 195,059.60

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Solution

The fourth proportional to 220,137.20, 329,914.20 and 195,059.60 is: 292,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,137.20 : 329,914.20 = 195,059.60 : x
  2. Step 2: Convert to fraction form
    220,137.20/329,914.20 = 195,059.60/x
  3. Step 3: Cross multiply
    220,137.20x = 329,914.20 × 195,059.60
  4. Step 4: Simplify right side
    220,137.20x = 64,352,931,886.32
  5. Step 5: Solve for x
    x = 64,352,931,886.32/220,137.20
  6. Step 6: Final answer
    x = 292,331.02

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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.