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Finding the Fourth Proportional to 267,317.96, 400,982.00 and 87,403.46

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Solution

The fourth proportional to 267,317.96, 400,982.00 and 87,403.46 is: 131,106.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,317.96 : 400,982.00 = 87,403.46 : x
  2. Step 2: Convert to fraction form
    267,317.96/400,982.00 = 87,403.46/x
  3. Step 3: Cross multiply
    267,317.96x = 400,982.00 × 87,403.46
  4. Step 4: Simplify right side
    267,317.96x = 35,047,211,755.79
  5. Step 5: Solve for x
    x = 35,047,211,755.79/267,317.96
  6. Step 6: Final answer
    x = 131,106.84

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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.