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Finding the Fourth Proportional to 554,553.13, 831,796.89 and 155,185.06

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Solution

The fourth proportional to 554,553.13, 831,796.89 and 155,185.06 is: 232,768.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,553.13 : 831,796.89 = 155,185.06 : x
  2. Step 2: Convert to fraction form
    554,553.13/831,796.89 = 155,185.06/x
  3. Step 3: Cross multiply
    554,553.13x = 831,796.89 × 155,185.06
  4. Step 4: Simplify right side
    554,553.13x = 129,082,452,749.92
  5. Step 5: Solve for x
    x = 129,082,452,749.92/554,553.13
  6. Step 6: Final answer
    x = 232,768.41

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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.