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Finding the Fourth Proportional to 352,511.11, 486,465.94 and 201,608.11

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Solution

The fourth proportional to 352,511.11, 486,465.94 and 201,608.11 is: 278,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,511.11 : 486,465.94 = 201,608.11 : x
  2. Step 2: Convert to fraction form
    352,511.11/486,465.94 = 201,608.11/x
  3. Step 3: Cross multiply
    352,511.11x = 486,465.94 × 201,608.11
  4. Step 4: Simplify right side
    352,511.11x = 98,075,478,846.84
  5. Step 5: Solve for x
    x = 98,075,478,846.84/352,511.11
  6. Step 6: Final answer
    x = 278,219.54

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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.