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Finding the Fourth Proportional to 403,746.33, 605,699.12 and 115,560.69

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Solution

The fourth proportional to 403,746.33, 605,699.12 and 115,560.69 is: 173,363.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,746.33 : 605,699.12 = 115,560.69 : x
  2. Step 2: Convert to fraction form
    403,746.33/605,699.12 = 115,560.69/x
  3. Step 3: Cross multiply
    403,746.33x = 605,699.12 × 115,560.69
  4. Step 4: Simplify right side
    403,746.33x = 69,995,008,239.59
  5. Step 5: Solve for x
    x = 69,995,008,239.59/403,746.33
  6. Step 6: Final answer
    x = 173,363.83

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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.