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Finding the Fourth Proportional to 119,376.09, 179,111.97 and 43,479.93

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Solution

The fourth proportional to 119,376.09, 179,111.97 and 43,479.93 is: 65,237.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,376.09 : 179,111.97 = 43,479.93 : x
  2. Step 2: Convert to fraction form
    119,376.09/179,111.97 = 43,479.93/x
  3. Step 3: Cross multiply
    119,376.09x = 179,111.97 × 43,479.93
  4. Step 4: Simplify right side
    119,376.09x = 7,787,775,917.76
  5. Step 5: Solve for x
    x = 7,787,775,917.76/119,376.09
  6. Step 6: Final answer
    x = 65,237.32

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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.