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Finding the Fourth Proportional to 87,266.96, 120,429.48 and 47,522.96

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Solution

The fourth proportional to 87,266.96, 120,429.48 and 47,522.96 is: 65,582.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,266.96 : 120,429.48 = 47,522.96 : x
  2. Step 2: Convert to fraction form
    87,266.96/120,429.48 = 47,522.96/x
  3. Step 3: Cross multiply
    87,266.96x = 120,429.48 × 47,522.96
  4. Step 4: Simplify right side
    87,266.96x = 5,723,165,360.86
  5. Step 5: Solve for x
    x = 5,723,165,360.86/87,266.96
  6. Step 6: Final answer
    x = 65,582.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.