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Finding the Fourth Proportional to 264,881.90, 397,335.09 and 87,404.42

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Solution

The fourth proportional to 264,881.90, 397,335.09 and 87,404.42 is: 131,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,881.90 : 397,335.09 = 87,404.42 : x
  2. Step 2: Convert to fraction form
    264,881.90/397,335.09 = 87,404.42/x
  3. Step 3: Cross multiply
    264,881.90x = 397,335.09 × 87,404.42
  4. Step 4: Simplify right side
    264,881.90x = 34,728,843,087.10
  5. Step 5: Solve for x
    x = 34,728,843,087.10/264,881.90
  6. Step 6: Final answer
    x = 131,110.67

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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.