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Finding the Fourth Proportional to 215,249.16, 297,039.72 and 119,755.08

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Solution

The fourth proportional to 215,249.16, 297,039.72 and 119,755.08 is: 165,259.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,249.16 : 297,039.72 = 119,755.08 : x
  2. Step 2: Convert to fraction form
    215,249.16/297,039.72 = 119,755.08/x
  3. Step 3: Cross multiply
    215,249.16x = 297,039.72 × 119,755.08
  4. Step 4: Simplify right side
    215,249.16x = 35,572,015,431.78
  5. Step 5: Solve for x
    x = 35,572,015,431.78/215,249.16
  6. Step 6: Final answer
    x = 165,259.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.