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Finding the Fourth Proportional to 356,448.89, 534,697.94 and 103,731.47

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Solution

The fourth proportional to 356,448.89, 534,697.94 and 103,731.47 is: 155,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,448.89 : 534,697.94 = 103,731.47 : x
  2. Step 2: Convert to fraction form
    356,448.89/534,697.94 = 103,731.47/x
  3. Step 3: Cross multiply
    356,448.89x = 534,697.94 × 103,731.47
  4. Step 4: Simplify right side
    356,448.89x = 55,465,004,529.25
  5. Step 5: Solve for x
    x = 55,465,004,529.25/356,448.89
  6. Step 6: Final answer
    x = 155,604.37

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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.