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Finding the Fourth Proportional to 292,900.41, 404,039.90 and 170,379

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Solution

The fourth proportional to 292,900.41, 404,039.90 and 170,379 is: 235,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,900.41 : 404,039.90 = 170,379 : x
  2. Step 2: Convert to fraction form
    292,900.41/404,039.90 = 170,379/x
  3. Step 3: Cross multiply
    292,900.41x = 404,039.90 × 170,379
  4. Step 4: Simplify right side
    292,900.41x = 68,839,914,548.05
  5. Step 5: Solve for x
    x = 68,839,914,548.05/292,900.41
  6. Step 6: Final answer
    x = 235,028.40

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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.