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Finding the Fourth Proportional to 228,508.94, 315,172.43 and 147,874.26

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Solution

The fourth proportional to 228,508.94, 315,172.43 and 147,874.26 is: 203,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,508.94 : 315,172.43 = 147,874.26 : x
  2. Step 2: Convert to fraction form
    228,508.94/315,172.43 = 147,874.26/x
  3. Step 3: Cross multiply
    228,508.94x = 315,172.43 × 147,874.26
  4. Step 4: Simplify right side
    228,508.94x = 46,605,889,858.65
  5. Step 5: Solve for x
    x = 46,605,889,858.65/228,508.94
  6. Step 6: Final answer
    x = 203,956.53

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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.