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Finding the Fourth Proportional to 297,658.26, 446,491.08 and 87,300.54

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Solution

The fourth proportional to 297,658.26, 446,491.08 and 87,300.54 is: 130,951.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,658.26 : 446,491.08 = 87,300.54 : x
  2. Step 2: Convert to fraction form
    297,658.26/446,491.08 = 87,300.54/x
  3. Step 3: Cross multiply
    297,658.26x = 446,491.08 × 87,300.54
  4. Step 4: Simplify right side
    297,658.26x = 38,978,912,389.18
  5. Step 5: Solve for x
    x = 38,978,912,389.18/297,658.26
  6. Step 6: Final answer
    x = 130,951.89

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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.