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Finding the Fourth Proportional to 444,728.40, 666,862.20 and 164,101.20

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Solution

The fourth proportional to 444,728.40, 666,862.20 and 164,101.20 is: 246,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,728.40 : 666,862.20 = 164,101.20 : x
  2. Step 2: Convert to fraction form
    444,728.40/666,862.20 = 164,101.20/x
  3. Step 3: Cross multiply
    444,728.40x = 666,862.20 × 164,101.20
  4. Step 4: Simplify right side
    444,728.40x = 109,432,887,254.64
  5. Step 5: Solve for x
    x = 109,432,887,254.64/444,728.40
  6. Step 6: Final answer
    x = 246,066.78

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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.