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Finding the Fourth Proportional to 279,549.41, 418,936.17 and 127,374.59

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Solution

The fourth proportional to 279,549.41, 418,936.17 and 127,374.59 is: 190,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,549.41 : 418,936.17 = 127,374.59 : x
  2. Step 2: Convert to fraction form
    279,549.41/418,936.17 = 127,374.59/x
  3. Step 3: Cross multiply
    279,549.41x = 418,936.17 × 127,374.59
  4. Step 4: Simplify right side
    279,549.41x = 53,361,824,285.44
  5. Step 5: Solve for x
    x = 53,361,824,285.44/279,549.41
  6. Step 6: Final answer
    x = 190,885.13

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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.