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Finding the Fourth Proportional to 339,551.01, 509,325.98 and 90,233.01

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Solution

The fourth proportional to 339,551.01, 509,325.98 and 90,233.01 is: 135,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,551.01 : 509,325.98 = 90,233.01 : x
  2. Step 2: Convert to fraction form
    339,551.01/509,325.98 = 90,233.01/x
  3. Step 3: Cross multiply
    339,551.01x = 509,325.98 × 90,233.01
  4. Step 4: Simplify right side
    339,551.01x = 45,958,015,795.43
  5. Step 5: Solve for x
    x = 45,958,015,795.43/339,551.01
  6. Step 6: Final answer
    x = 135,349.37

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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.