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Finding the Fourth Proportional to 119,713.35, 179,448.83 and 77,620.08

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Solution

The fourth proportional to 119,713.35, 179,448.83 and 77,620.08 is: 116,351.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,713.35 : 179,448.83 = 77,620.08 : x
  2. Step 2: Convert to fraction form
    119,713.35/179,448.83 = 77,620.08/x
  3. Step 3: Cross multiply
    119,713.35x = 179,448.83 × 77,620.08
  4. Step 4: Simplify right side
    119,713.35x = 13,928,832,152.41
  5. Step 5: Solve for x
    x = 13,928,832,152.41/119,713.35
  6. Step 6: Final answer
    x = 116,351.54

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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.