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Finding the Fourth Proportional to 363,307.96, 544,965 and 126,650.20

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Solution

The fourth proportional to 363,307.96, 544,965 and 126,650.20 is: 189,976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,307.96 : 544,965 = 126,650.20 : x
  2. Step 2: Convert to fraction form
    363,307.96/544,965 = 126,650.20/x
  3. Step 3: Cross multiply
    363,307.96x = 544,965 × 126,650.20
  4. Step 4: Simplify right side
    363,307.96x = 69,019,926,243
  5. Step 5: Solve for x
    x = 69,019,926,243/363,307.96
  6. Step 6: Final answer
    x = 189,976.37

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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.