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Finding the Fourth Proportional to 87,462.36, 120,714.30 and 49,734.36

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Solution

The fourth proportional to 87,462.36, 120,714.30 and 49,734.36 is: 68,642.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,462.36 : 120,714.30 = 49,734.36 : x
  2. Step 2: Convert to fraction form
    87,462.36/120,714.30 = 49,734.36/x
  3. Step 3: Cross multiply
    87,462.36x = 120,714.30 × 49,734.36
  4. Step 4: Simplify right side
    87,462.36x = 6,003,648,453.35
  5. Step 5: Solve for x
    x = 6,003,648,453.35/87,462.36
  6. Step 6: Final answer
    x = 68,642.65

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1.5x scale

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.