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Finding the Fourth Proportional to 365,812.46, 548,893.62 and 129,266.54

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Solution

The fourth proportional to 365,812.46, 548,893.62 and 129,266.54 is: 193,961.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,812.46 : 548,893.62 = 129,266.54 : x
  2. Step 2: Convert to fraction form
    365,812.46/548,893.62 = 129,266.54/x
  3. Step 3: Cross multiply
    365,812.46x = 548,893.62 × 129,266.54
  4. Step 4: Simplify right side
    365,812.46x = 70,953,576,341.01
  5. Step 5: Solve for x
    x = 70,953,576,341.01/365,812.46
  6. Step 6: Final answer
    x = 193,961.62

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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.