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Finding the Fourth Proportional to 320,901.17, 481,406.42 and 161,053.34

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Solution

The fourth proportional to 320,901.17, 481,406.42 and 161,053.34 is: 241,607.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,901.17 : 481,406.42 = 161,053.34 : x
  2. Step 2: Convert to fraction form
    320,901.17/481,406.42 = 161,053.34/x
  3. Step 3: Cross multiply
    320,901.17x = 481,406.42 × 161,053.34
  4. Step 4: Simplify right side
    320,901.17x = 77,532,109,834.04
  5. Step 5: Solve for x
    x = 77,532,109,834.04/320,901.17
  6. Step 6: Final answer
    x = 241,607.44

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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.