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Finding the Fourth Proportional to 444,081.45, 666,130.41 and 144,561

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Solution

The fourth proportional to 444,081.45, 666,130.41 and 144,561 is: 216,844.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,081.45 : 666,130.41 = 144,561 : x
  2. Step 2: Convert to fraction form
    444,081.45/666,130.41 = 144,561/x
  3. Step 3: Cross multiply
    444,081.45x = 666,130.41 × 144,561
  4. Step 4: Simplify right side
    444,081.45x = 96,296,478,200.01
  5. Step 5: Solve for x
    x = 96,296,478,200.01/444,081.45
  6. Step 6: Final answer
    x = 216,844.18

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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.