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Finding the Fourth Proportional to 415,394.26, 623,096.39 and 115,856.60

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Solution

The fourth proportional to 415,394.26, 623,096.39 and 115,856.60 is: 173,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,394.26 : 623,096.39 = 115,856.60 : x
  2. Step 2: Convert to fraction form
    415,394.26/623,096.39 = 115,856.60/x
  3. Step 3: Cross multiply
    415,394.26x = 623,096.39 × 115,856.60
  4. Step 4: Simplify right side
    415,394.26x = 72,189,829,217.67
  5. Step 5: Solve for x
    x = 72,189,829,217.67/415,394.26
  6. Step 6: Final answer
    x = 173,786.29

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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.