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Finding the Fourth Proportional to 135,930.60, 203,895.90 and 93,940.20

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Solution

The fourth proportional to 135,930.60, 203,895.90 and 93,940.20 is: 140,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,930.60 : 203,895.90 = 93,940.20 : x
  2. Step 2: Convert to fraction form
    135,930.60/203,895.90 = 93,940.20/x
  3. Step 3: Cross multiply
    135,930.60x = 203,895.90 × 93,940.20
  4. Step 4: Simplify right side
    135,930.60x = 19,154,021,625.18
  5. Step 5: Solve for x
    x = 19,154,021,625.18/135,930.60
  6. Step 6: Final answer
    x = 140,910.30

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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.