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Finding the Fourth Proportional to 79,990.82, 110,400.81 and 46,476.26

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Solution

The fourth proportional to 79,990.82, 110,400.81 and 46,476.26 is: 64,145.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,990.82 : 110,400.81 = 46,476.26 : x
  2. Step 2: Convert to fraction form
    79,990.82/110,400.81 = 46,476.26/x
  3. Step 3: Cross multiply
    79,990.82x = 110,400.81 × 46,476.26
  4. Step 4: Simplify right side
    79,990.82x = 5,131,016,749.77
  5. Step 5: Solve for x
    x = 5,131,016,749.77/79,990.82
  6. Step 6: Final answer
    x = 64,145.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.