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Finding the Fourth Proportional to 298,394.68, 447,587.62 and 73,755.13

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Solution

The fourth proportional to 298,394.68, 447,587.62 and 73,755.13 is: 110,631.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,394.68 : 447,587.62 = 73,755.13 : x
  2. Step 2: Convert to fraction form
    298,394.68/447,587.62 = 73,755.13/x
  3. Step 3: Cross multiply
    298,394.68x = 447,587.62 × 73,755.13
  4. Step 4: Simplify right side
    298,394.68x = 33,011,883,099.49
  5. Step 5: Solve for x
    x = 33,011,883,099.49/298,394.68
  6. Step 6: Final answer
    x = 110,631.61

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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.