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Finding the Fourth Proportional to 290,804.35, 436,027.92 and 113,104.30

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Solution

The fourth proportional to 290,804.35, 436,027.92 and 113,104.30 is: 169,586.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,804.35 : 436,027.92 = 113,104.30 : x
  2. Step 2: Convert to fraction form
    290,804.35/436,027.92 = 113,104.30/x
  3. Step 3: Cross multiply
    290,804.35x = 436,027.92 × 113,104.30
  4. Step 4: Simplify right side
    290,804.35x = 49,316,632,672.06
  5. Step 5: Solve for x
    x = 49,316,632,672.06/290,804.35
  6. Step 6: Final answer
    x = 169,586.98

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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.