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Finding the Fourth Proportional to 403,694.82, 605,539.19 and 104,149.93

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Solution

The fourth proportional to 403,694.82, 605,539.19 and 104,149.93 is: 156,224.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,694.82 : 605,539.19 = 104,149.93 : x
  2. Step 2: Convert to fraction form
    403,694.82/605,539.19 = 104,149.93/x
  3. Step 3: Cross multiply
    403,694.82x = 605,539.19 × 104,149.93
  4. Step 4: Simplify right side
    403,694.82x = 63,066,864,250.76
  5. Step 5: Solve for x
    x = 63,066,864,250.76/403,694.82
  6. Step 6: Final answer
    x = 156,224.11

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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.