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Finding the Fourth Proportional to 344,317.76, 515,365.60 and 177,876.80

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Solution

The fourth proportional to 344,317.76, 515,365.60 and 177,876.80 is: 266,241.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,317.76 : 515,365.60 = 177,876.80 : x
  2. Step 2: Convert to fraction form
    344,317.76/515,365.60 = 177,876.80/x
  3. Step 3: Cross multiply
    344,317.76x = 515,365.60 × 177,876.80
  4. Step 4: Simplify right side
    344,317.76x = 91,671,583,758.08
  5. Step 5: Solve for x
    x = 91,671,583,758.08/344,317.76
  6. Step 6: Final answer
    x = 266,241.23

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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.