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Finding the Fourth Proportional to 274,239.09, 411,410.13 and 124,489.89

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Solution

The fourth proportional to 274,239.09, 411,410.13 and 124,489.89 is: 186,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,239.09 : 411,410.13 = 124,489.89 : x
  2. Step 2: Convert to fraction form
    274,239.09/411,410.13 = 124,489.89/x
  3. Step 3: Cross multiply
    274,239.09x = 411,410.13 × 124,489.89
  4. Step 4: Simplify right side
    274,239.09x = 51,216,401,828.59
  5. Step 5: Solve for x
    x = 51,216,401,828.59/274,239.09
  6. Step 6: Final answer
    x = 186,758.21

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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.