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Finding the Fourth Proportional to 119,786.99, 179,641.59 and 39,803.48

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Solution

The fourth proportional to 119,786.99, 179,641.59 and 39,803.48 is: 59,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,786.99 : 179,641.59 = 39,803.48 : x
  2. Step 2: Convert to fraction form
    119,786.99/179,641.59 = 39,803.48/x
  3. Step 3: Cross multiply
    119,786.99x = 179,641.59 × 39,803.48
  4. Step 4: Simplify right side
    119,786.99x = 7,150,359,751.58
  5. Step 5: Solve for x
    x = 7,150,359,751.58/119,786.99
  6. Step 6: Final answer
    x = 59,692.29

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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.