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Finding the Fourth Proportional to 318,181.32, 439,086.29 and 174,940.11

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Solution

The fourth proportional to 318,181.32, 439,086.29 and 174,940.11 is: 241,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,181.32 : 439,086.29 = 174,940.11 : x
  2. Step 2: Convert to fraction form
    318,181.32/439,086.29 = 174,940.11/x
  3. Step 3: Cross multiply
    318,181.32x = 439,086.29 × 174,940.11
  4. Step 4: Simplify right side
    318,181.32x = 76,813,802,997.39
  5. Step 5: Solve for x
    x = 76,813,802,997.39/318,181.32
  6. Step 6: Final answer
    x = 241,415.19

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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.