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Finding the Fourth Proportional to 202,755.42, 279,822.89 and 112,118.22

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Solution

The fourth proportional to 202,755.42, 279,822.89 and 112,118.22 is: 154,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,755.42 : 279,822.89 = 112,118.22 : x
  2. Step 2: Convert to fraction form
    202,755.42/279,822.89 = 112,118.22/x
  3. Step 3: Cross multiply
    202,755.42x = 279,822.89 × 112,118.22
  4. Step 4: Simplify right side
    202,755.42x = 31,373,244,622.35
  5. Step 5: Solve for x
    x = 31,373,244,622.35/202,755.42
  6. Step 6: Final answer
    x = 154,734.43

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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.