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Finding the Fourth Proportional to 203,214.60, 304,821.90 and 132,355.80

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Solution

The fourth proportional to 203,214.60, 304,821.90 and 132,355.80 is: 198,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,214.60 : 304,821.90 = 132,355.80 : x
  2. Step 2: Convert to fraction form
    203,214.60/304,821.90 = 132,355.80/x
  3. Step 3: Cross multiply
    203,214.60x = 304,821.90 × 132,355.80
  4. Step 4: Simplify right side
    203,214.60x = 40,344,946,432.02
  5. Step 5: Solve for x
    x = 40,344,946,432.02/203,214.60
  6. Step 6: Final answer
    x = 198,533.70

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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.