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Finding the Fourth Proportional to 338,274.90, 507,045.57 and 169,388.07

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Solution

The fourth proportional to 338,274.90, 507,045.57 and 169,388.07 is: 253,898.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,274.90 : 507,045.57 = 169,388.07 : x
  2. Step 2: Convert to fraction form
    338,274.90/507,045.57 = 169,388.07/x
  3. Step 3: Cross multiply
    338,274.90x = 507,045.57 × 169,388.07
  4. Step 4: Simplify right side
    338,274.90x = 85,887,470,504.35
  5. Step 5: Solve for x
    x = 85,887,470,504.35/338,274.90
  6. Step 6: Final answer
    x = 253,898.44

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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.