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Finding the Fourth Proportional to 264,988.62, 397,495.23 and 85,081.38

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Solution

The fourth proportional to 264,988.62, 397,495.23 and 85,081.38 is: 127,626.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,988.62 : 397,495.23 = 85,081.38 : x
  2. Step 2: Convert to fraction form
    264,988.62/397,495.23 = 85,081.38/x
  3. Step 3: Cross multiply
    264,988.62x = 397,495.23 × 85,081.38
  4. Step 4: Simplify right side
    264,988.62x = 33,819,442,711.82
  5. Step 5: Solve for x
    x = 33,819,442,711.82/264,988.62
  6. Step 6: Final answer
    x = 127,626.02

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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.