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Finding the Fourth Proportional to 352,063.16, 485,847.29 and 190,918.17

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Solution

The fourth proportional to 352,063.16, 485,847.29 and 190,918.17 is: 263,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,063.16 : 485,847.29 = 190,918.17 : x
  2. Step 2: Convert to fraction form
    352,063.16/485,847.29 = 190,918.17/x
  3. Step 3: Cross multiply
    352,063.16x = 485,847.29 × 190,918.17
  4. Step 4: Simplify right side
    352,063.16x = 92,757,075,983.55
  5. Step 5: Solve for x
    x = 92,757,075,983.55/352,063.16
  6. Step 6: Final answer
    x = 263,467.14

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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.