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Finding the Fourth Proportional to 297,993.08, 446,997.72 and 87,637.70

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Solution

The fourth proportional to 297,993.08, 446,997.72 and 87,637.70 is: 131,458.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,993.08 : 446,997.72 = 87,637.70 : x
  2. Step 2: Convert to fraction form
    297,993.08/446,997.72 = 87,637.70/x
  3. Step 3: Cross multiply
    297,993.08x = 446,997.72 × 87,637.70
  4. Step 4: Simplify right side
    297,993.08x = 39,173,852,086.04
  5. Step 5: Solve for x
    x = 39,173,852,086.04/297,993.08
  6. Step 6: Final answer
    x = 131,458.93

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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.