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Finding the Fourth Proportional to 436,157.06, 654,235.38 and 136,661.18

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Solution

The fourth proportional to 436,157.06, 654,235.38 and 136,661.18 is: 204,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,157.06 : 654,235.38 = 136,661.18 : x
  2. Step 2: Convert to fraction form
    436,157.06/654,235.38 = 136,661.18/x
  3. Step 3: Cross multiply
    436,157.06x = 654,235.38 × 136,661.18
  4. Step 4: Simplify right side
    436,157.06x = 89,408,575,757.37
  5. Step 5: Solve for x
    x = 89,408,575,757.37/436,157.06
  6. Step 6: Final answer
    x = 204,991.70

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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.