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Finding the Fourth Proportional to 340,782.83, 511,174.17 and 91,464.83

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Solution

The fourth proportional to 340,782.83, 511,174.17 and 91,464.83 is: 137,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,782.83 : 511,174.17 = 91,464.83 : x
  2. Step 2: Convert to fraction form
    340,782.83/511,174.17 = 91,464.83/x
  3. Step 3: Cross multiply
    340,782.83x = 511,174.17 × 91,464.83
  4. Step 4: Simplify right side
    340,782.83x = 46,754,455,546.25
  5. Step 5: Solve for x
    x = 46,754,455,546.25/340,782.83
  6. Step 6: Final answer
    x = 137,197.22

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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.