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Finding the Fourth Proportional to 119,992.19, 179,980.99 and 49,872.11

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Solution

The fourth proportional to 119,992.19, 179,980.99 and 49,872.11 is: 74,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,992.19 : 179,980.99 = 49,872.11 : x
  2. Step 2: Convert to fraction form
    119,992.19/179,980.99 = 49,872.11/x
  3. Step 3: Cross multiply
    119,992.19x = 179,980.99 × 49,872.11
  4. Step 4: Simplify right side
    119,992.19x = 8,976,030,706.60
  5. Step 5: Solve for x
    x = 8,976,030,706.60/119,992.19
  6. Step 6: Final answer
    x = 74,805.13

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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.