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Finding the Fourth Proportional to 269,271.69, 403,783.37 and 79,664.26

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Solution

The fourth proportional to 269,271.69, 403,783.37 and 79,664.26 is: 119,459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,271.69 : 403,783.37 = 79,664.26 : x
  2. Step 2: Convert to fraction form
    269,271.69/403,783.37 = 79,664.26/x
  3. Step 3: Cross multiply
    269,271.69x = 403,783.37 × 79,664.26
  4. Step 4: Simplify right side
    269,271.69x = 32,167,101,352.44
  5. Step 5: Solve for x
    x = 32,167,101,352.44/269,271.69
  6. Step 6: Final answer
    x = 119,459.65

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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.