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Finding the Fourth Proportional to 338,508.60, 507,617.10 and 169,963.80

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Solution

The fourth proportional to 338,508.60, 507,617.10 and 169,963.80 is: 254,872.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,508.60 : 507,617.10 = 169,963.80 : x
  2. Step 2: Convert to fraction form
    338,508.60/507,617.10 = 169,963.80/x
  3. Step 3: Cross multiply
    338,508.60x = 507,617.10 × 169,963.80
  4. Step 4: Simplify right side
    338,508.60x = 86,276,531,260.98
  5. Step 5: Solve for x
    x = 86,276,531,260.98/338,508.60
  6. Step 6: Final answer
    x = 254,872.49

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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.