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Finding the Fourth Proportional to 269,272.69, 403,784.87 and 79,665.26

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Solution

The fourth proportional to 269,272.69, 403,784.87 and 79,665.26 is: 119,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,272.69 : 403,784.87 = 79,665.26 : x
  2. Step 2: Convert to fraction form
    269,272.69/403,784.87 = 79,665.26/x
  3. Step 3: Cross multiply
    269,272.69x = 403,784.87 × 79,665.26
  4. Step 4: Simplify right side
    269,272.69x = 32,167,626,652.62
  5. Step 5: Solve for x
    x = 32,167,626,652.62/269,272.69
  6. Step 6: Final answer
    x = 119,461.16

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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.