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Finding the Fourth Proportional to 339,083.89, 508,601.18 and 136,693.44

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Solution

The fourth proportional to 339,083.89, 508,601.18 and 136,693.44 is: 205,030.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,083.89 : 508,601.18 = 136,693.44 : x
  2. Step 2: Convert to fraction form
    339,083.89/508,601.18 = 136,693.44/x
  3. Step 3: Cross multiply
    339,083.89x = 508,601.18 × 136,693.44
  4. Step 4: Simplify right side
    339,083.89x = 69,522,445,223.99
  5. Step 5: Solve for x
    x = 69,522,445,223.99/339,083.89
  6. Step 6: Final answer
    x = 205,030.22

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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.