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Finding the Fourth Proportional to 355,997.28, 534,083.42 and 106,679.28

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Solution

The fourth proportional to 355,997.28, 534,083.42 and 106,679.28 is: 160,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,997.28 : 534,083.42 = 106,679.28 : x
  2. Step 2: Convert to fraction form
    355,997.28/534,083.42 = 106,679.28/x
  3. Step 3: Cross multiply
    355,997.28x = 534,083.42 × 106,679.28
  4. Step 4: Simplify right side
    355,997.28x = 56,975,634,705.54
  5. Step 5: Solve for x
    x = 56,975,634,705.54/355,997.28
  6. Step 6: Final answer
    x = 160,045.14

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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.