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Finding the Fourth Proportional to 208,379.48, 312,448.52 and 183,469.55

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Solution

The fourth proportional to 208,379.48, 312,448.52 and 183,469.55 is: 275,098.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,379.48 : 312,448.52 = 183,469.55 : x
  2. Step 2: Convert to fraction form
    208,379.48/312,448.52 = 183,469.55/x
  3. Step 3: Cross multiply
    208,379.48x = 312,448.52 × 183,469.55
  4. Step 4: Simplify right side
    208,379.48x = 57,324,788,259.00
  5. Step 5: Solve for x
    x = 57,324,788,259.00/208,379.48
  6. Step 6: Final answer
    x = 275,098.05

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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.