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Finding the Fourth Proportional to 290,768.57, 436,262.25 and 101,243.15

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Solution

The fourth proportional to 290,768.57, 436,262.25 and 101,243.15 is: 151,902.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,768.57 : 436,262.25 = 101,243.15 : x
  2. Step 2: Convert to fraction form
    290,768.57/436,262.25 = 101,243.15/x
  3. Step 3: Cross multiply
    290,768.57x = 436,262.25 × 101,243.15
  4. Step 4: Simplify right side
    290,768.57x = 44,168,564,416.09
  5. Step 5: Solve for x
    x = 44,168,564,416.09/290,768.57
  6. Step 6: Final answer
    x = 151,902.82

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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.