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Finding the Fourth Proportional to 353,137.98, 487,328.01 and 191,993.01

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Solution

The fourth proportional to 353,137.98, 487,328.01 and 191,993.01 is: 264,949.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,137.98 : 487,328.01 = 191,993.01 : x
  2. Step 2: Convert to fraction form
    353,137.98/487,328.01 = 191,993.01/x
  3. Step 3: Cross multiply
    353,137.98x = 487,328.01 × 191,993.01
  4. Step 4: Simplify right side
    353,137.98x = 93,563,571,497.21
  5. Step 5: Solve for x
    x = 93,563,571,497.21/353,137.98
  6. Step 6: Final answer
    x = 264,949.05

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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.