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Finding the Fourth Proportional to 351,874.45, 485,587.79 and 190,730.14

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Solution

The fourth proportional to 351,874.45, 485,587.79 and 190,730.14 is: 263,208.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,874.45 : 485,587.79 = 190,730.14 : x
  2. Step 2: Convert to fraction form
    351,874.45/485,587.79 = 190,730.14/x
  3. Step 3: Cross multiply
    351,874.45x = 485,587.79 × 190,730.14
  4. Step 4: Simplify right side
    351,874.45x = 92,616,227,911.61
  5. Step 5: Solve for x
    x = 92,616,227,911.61/351,874.45
  6. Step 6: Final answer
    x = 263,208.16

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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.