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Finding the Fourth Proportional to 481,672.64, 722,542.08 and 144,699.20

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Solution

The fourth proportional to 481,672.64, 722,542.08 and 144,699.20 is: 217,058.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,672.64 : 722,542.08 = 144,699.20 : x
  2. Step 2: Convert to fraction form
    481,672.64/722,542.08 = 144,699.20/x
  3. Step 3: Cross multiply
    481,672.64x = 722,542.08 × 144,699.20
  4. Step 4: Simplify right side
    481,672.64x = 104,551,260,942.34
  5. Step 5: Solve for x
    x = 104,551,260,942.34/481,672.64
  6. Step 6: Final answer
    x = 217,058.75

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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.