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Finding the Fourth Proportional to 119,808, 179,589.12 and 49,728

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Solution

The fourth proportional to 119,808, 179,589.12 and 49,728 is: 74,541.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,808 : 179,589.12 = 49,728 : x
  2. Step 2: Convert to fraction form
    119,808/179,589.12 = 49,728/x
  3. Step 3: Cross multiply
    119,808x = 179,589.12 × 49,728
  4. Step 4: Simplify right side
    119,808x = 8,930,607,759.36
  5. Step 5: Solve for x
    x = 8,930,607,759.36/119,808
  6. Step 6: Final answer
    x = 74,541.00

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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.