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Finding the Fourth Proportional to 339,722.48, 509,175.48 and 239,732.84

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Solution

The fourth proportional to 339,722.48, 509,175.48 and 239,732.84 is: 359,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,722.48 : 509,175.48 = 239,732.84 : x
  2. Step 2: Convert to fraction form
    339,722.48/509,175.48 = 239,732.84/x
  3. Step 3: Cross multiply
    339,722.48x = 509,175.48 × 239,732.84
  4. Step 4: Simplify right side
    339,722.48x = 122,066,083,878.76
  5. Step 5: Solve for x
    x = 122,066,083,878.76/339,722.48
  6. Step 6: Final answer
    x = 359,311.18

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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.