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Finding the Fourth Proportional to 201,892.20, 302,838.30 and 188,770.20

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Solution

The fourth proportional to 201,892.20, 302,838.30 and 188,770.20 is: 283,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,892.20 : 302,838.30 = 188,770.20 : x
  2. Step 2: Convert to fraction form
    201,892.20/302,838.30 = 188,770.20/x
  3. Step 3: Cross multiply
    201,892.20x = 302,838.30 × 188,770.20
  4. Step 4: Simplify right side
    201,892.20x = 57,166,846,458.66
  5. Step 5: Solve for x
    x = 57,166,846,458.66/201,892.20
  6. Step 6: Final answer
    x = 283,155.30

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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.