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Finding the Fourth Proportional to 361,288.22, 542,429.87 and 183,918.87

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Solution

The fourth proportional to 361,288.22, 542,429.87 and 183,918.87 is: 276,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,288.22 : 542,429.87 = 183,918.87 : x
  2. Step 2: Convert to fraction form
    361,288.22/542,429.87 = 183,918.87/x
  3. Step 3: Cross multiply
    361,288.22x = 542,429.87 × 183,918.87
  4. Step 4: Simplify right side
    361,288.22x = 99,763,087,825.05
  5. Step 5: Solve for x
    x = 99,763,087,825.05/361,288.22
  6. Step 6: Final answer
    x = 276,131.59

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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.