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Finding the Fourth Proportional to 363,304.96, 544,960.50 and 126,647.20

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Solution

The fourth proportional to 363,304.96, 544,960.50 and 126,647.20 is: 189,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,304.96 : 544,960.50 = 126,647.20 : x
  2. Step 2: Convert to fraction form
    363,304.96/544,960.50 = 126,647.20/x
  3. Step 3: Cross multiply
    363,304.96x = 544,960.50 × 126,647.20
  4. Step 4: Simplify right side
    363,304.96x = 69,017,721,435.60
  5. Step 5: Solve for x
    x = 69,017,721,435.60/363,304.96
  6. Step 6: Final answer
    x = 189,971.87

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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.