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Finding the Fourth Proportional to 445,616.83, 668,020.65 and 164,937.25

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Solution

The fourth proportional to 445,616.83, 668,020.65 and 164,937.25 is: 247,256.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,616.83 : 668,020.65 = 164,937.25 : x
  2. Step 2: Convert to fraction form
    445,616.83/668,020.65 = 164,937.25/x
  3. Step 3: Cross multiply
    445,616.83x = 668,020.65 × 164,937.25
  4. Step 4: Simplify right side
    445,616.83x = 110,181,488,954.21
  5. Step 5: Solve for x
    x = 110,181,488,954.21/445,616.83
  6. Step 6: Final answer
    x = 247,256.12

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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.