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Finding the Fourth Proportional to 194,687.20, 292,203.60 and 168,421.60

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Solution

The fourth proportional to 194,687.20, 292,203.60 and 168,421.60 is: 252,781.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,687.20 : 292,203.60 = 168,421.60 : x
  2. Step 2: Convert to fraction form
    194,687.20/292,203.60 = 168,421.60/x
  3. Step 3: Cross multiply
    194,687.20x = 292,203.60 × 168,421.60
  4. Step 4: Simplify right side
    194,687.20x = 49,213,397,837.76
  5. Step 5: Solve for x
    x = 49,213,397,837.76/194,687.20
  6. Step 6: Final answer
    x = 252,781.89

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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.