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Finding the Fourth Proportional to 310,912.63, 466,369.17 and 86,273.29

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Solution

The fourth proportional to 310,912.63, 466,369.17 and 86,273.29 is: 129,410.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,912.63 : 466,369.17 = 86,273.29 : x
  2. Step 2: Convert to fraction form
    310,912.63/466,369.17 = 86,273.29/x
  3. Step 3: Cross multiply
    310,912.63x = 466,369.17 × 86,273.29
  4. Step 4: Simplify right side
    310,912.63x = 40,235,202,650.47
  5. Step 5: Solve for x
    x = 40,235,202,650.47/310,912.63
  6. Step 6: Final answer
    x = 129,410.00

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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.