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Finding the Fourth Proportional to 264,877, 365,530.26 and 145,645

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Solution

The fourth proportional to 264,877, 365,530.26 and 145,645 is: 200,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,877 : 365,530.26 = 145,645 : x
  2. Step 2: Convert to fraction form
    264,877/365,530.26 = 145,645/x
  3. Step 3: Cross multiply
    264,877x = 365,530.26 × 145,645
  4. Step 4: Simplify right side
    264,877x = 53,237,654,717.70
  5. Step 5: Solve for x
    x = 53,237,654,717.70/264,877
  6. Step 6: Final answer
    x = 200,990.10

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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.