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Finding the Fourth Proportional to 445,618.84, 668,023.64 and 164,939.26

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Solution

The fourth proportional to 445,618.84, 668,023.64 and 164,939.26 is: 247,259.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,618.84 : 668,023.64 = 164,939.26 : x
  2. Step 2: Convert to fraction form
    445,618.84/668,023.64 = 164,939.26/x
  3. Step 3: Cross multiply
    445,618.84x = 668,023.64 × 164,939.26
  4. Step 4: Simplify right side
    445,618.84x = 110,183,324,844.11
  5. Step 5: Solve for x
    x = 110,183,324,844.11/445,618.84
  6. Step 6: Final answer
    x = 247,259.13

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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.