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Finding the Fourth Proportional to 172,994.20, 259,491.30 and 48,335.20

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Solution

The fourth proportional to 172,994.20, 259,491.30 and 48,335.20 is: 72,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,994.20 : 259,491.30 = 48,335.20 : x
  2. Step 2: Convert to fraction form
    172,994.20/259,491.30 = 48,335.20/x
  3. Step 3: Cross multiply
    172,994.20x = 259,491.30 × 48,335.20
  4. Step 4: Simplify right side
    172,994.20x = 12,542,563,883.76
  5. Step 5: Solve for x
    x = 12,542,563,883.76/172,994.20
  6. Step 6: Final answer
    x = 72,502.80

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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.