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Finding the Fourth Proportional to 298,317.84, 411,696.99 and 171,012.57

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Solution

The fourth proportional to 298,317.84, 411,696.99 and 171,012.57 is: 236,007.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,317.84 : 411,696.99 = 171,012.57 : x
  2. Step 2: Convert to fraction form
    298,317.84/411,696.99 = 171,012.57/x
  3. Step 3: Cross multiply
    298,317.84x = 411,696.99 × 171,012.57
  4. Step 4: Simplify right side
    298,317.84x = 70,405,360,321.16
  5. Step 5: Solve for x
    x = 70,405,360,321.16/298,317.84
  6. Step 6: Final answer
    x = 236,007.88

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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.