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Finding the Fourth Proportional to 208,241.01, 312,416.80 and 108,371.66

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Solution

The fourth proportional to 208,241.01, 312,416.80 and 108,371.66 is: 162,586.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,241.01 : 312,416.80 = 108,371.66 : x
  2. Step 2: Convert to fraction form
    208,241.01/312,416.80 = 108,371.66/x
  3. Step 3: Cross multiply
    208,241.01x = 312,416.80 × 108,371.66
  4. Step 4: Simplify right side
    208,241.01x = 33,857,125,394.87
  5. Step 5: Solve for x
    x = 33,857,125,394.87/208,241.01
  6. Step 6: Final answer
    x = 162,586.25

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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.