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Finding the Fourth Proportional to 363,126.40, 544,523.20 and 194,620.80

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Solution

The fourth proportional to 363,126.40, 544,523.20 and 194,620.80 is: 291,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,126.40 : 544,523.20 = 194,620.80 : x
  2. Step 2: Convert to fraction form
    363,126.40/544,523.20 = 194,620.80/x
  3. Step 3: Cross multiply
    363,126.40x = 544,523.20 × 194,620.80
  4. Step 4: Simplify right side
    363,126.40x = 105,975,540,802.56
  5. Step 5: Solve for x
    x = 105,975,540,802.56/363,126.40
  6. Step 6: Final answer
    x = 291,842.02

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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.