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Finding the Fourth Proportional to 333,936.72, 501,101.64 and 123,721.20

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Solution

The fourth proportional to 333,936.72, 501,101.64 and 123,721.20 is: 185,654.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,936.72 : 501,101.64 = 123,721.20 : x
  2. Step 2: Convert to fraction form
    333,936.72/501,101.64 = 123,721.20/x
  3. Step 3: Cross multiply
    333,936.72x = 501,101.64 × 123,721.20
  4. Step 4: Simplify right side
    333,936.72x = 61,996,896,222.77
  5. Step 5: Solve for x
    x = 61,996,896,222.77/333,936.72
  6. Step 6: Final answer
    x = 185,654.62

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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.