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Finding the Fourth Proportional to 290,768.58, 436,262.26 and 101,243.16

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Solution

The fourth proportional to 290,768.58, 436,262.26 and 101,243.16 is: 151,902.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,768.58 : 436,262.26 = 101,243.16 : x
  2. Step 2: Convert to fraction form
    290,768.58/436,262.26 = 101,243.16/x
  3. Step 3: Cross multiply
    290,768.58x = 436,262.26 × 101,243.16
  4. Step 4: Simplify right side
    290,768.58x = 44,168,569,791.14
  5. Step 5: Solve for x
    x = 44,168,569,791.14/290,768.58
  6. Step 6: Final answer
    x = 151,902.83

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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.