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Finding the Fourth Proportional to 144,486.01, 199,401.21 and 80,844.31

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Solution

The fourth proportional to 144,486.01, 199,401.21 and 80,844.31 is: 111,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,486.01 : 199,401.21 = 80,844.31 : x
  2. Step 2: Convert to fraction form
    144,486.01/199,401.21 = 80,844.31/x
  3. Step 3: Cross multiply
    144,486.01x = 199,401.21 × 80,844.31
  4. Step 4: Simplify right side
    144,486.01x = 16,120,453,484.87
  5. Step 5: Solve for x
    x = 16,120,453,484.87/144,486.01
  6. Step 6: Final answer
    x = 111,571.03

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1.5x scale

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.