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Finding the Fourth Proportional to 264,876, 365,528.88 and 145,644

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Solution

The fourth proportional to 264,876, 365,528.88 and 145,644 is: 200,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,876 : 365,528.88 = 145,644 : x
  2. Step 2: Convert to fraction form
    264,876/365,528.88 = 145,644/x
  3. Step 3: Cross multiply
    264,876x = 365,528.88 × 145,644
  4. Step 4: Simplify right side
    264,876x = 53,237,088,198.72
  5. Step 5: Solve for x
    x = 53,237,088,198.72/264,876
  6. Step 6: Final answer
    x = 200,988.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.