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Finding the Fourth Proportional to 179,879.81, 269,772.69 and 53,486.01

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Solution

The fourth proportional to 179,879.81, 269,772.69 and 53,486.01 is: 80,215.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,879.81 : 269,772.69 = 53,486.01 : x
  2. Step 2: Convert to fraction form
    179,879.81/269,772.69 = 53,486.01/x
  3. Step 3: Cross multiply
    179,879.81x = 269,772.69 × 53,486.01
  4. Step 4: Simplify right side
    179,879.81x = 14,429,064,995.64
  5. Step 5: Solve for x
    x = 14,429,064,995.64/179,879.81
  6. Step 6: Final answer
    x = 80,215.04

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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.