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Finding the Fourth Proportional to 297,717.46, 446,590.74 and 87,337.78

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Solution

The fourth proportional to 297,717.46, 446,590.74 and 87,337.78 is: 131,010.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,717.46 : 446,590.74 = 87,337.78 : x
  2. Step 2: Convert to fraction form
    297,717.46/446,590.74 = 87,337.78/x
  3. Step 3: Cross multiply
    297,717.46x = 446,590.74 × 87,337.78
  4. Step 4: Simplify right side
    297,717.46x = 39,004,243,800.16
  5. Step 5: Solve for x
    x = 39,004,243,800.16/297,717.46
  6. Step 6: Final answer
    x = 131,010.94

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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.