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Finding the Fourth Proportional to 171,236.57, 236,139.71 and 154,416.44

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Solution

The fourth proportional to 171,236.57, 236,139.71 and 154,416.44 is: 212,944.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,236.57 : 236,139.71 = 154,416.44 : x
  2. Step 2: Convert to fraction form
    171,236.57/236,139.71 = 154,416.44/x
  3. Step 3: Cross multiply
    171,236.57x = 236,139.71 × 154,416.44
  4. Step 4: Simplify right side
    171,236.57x = 36,463,853,179.10
  5. Step 5: Solve for x
    x = 36,463,853,179.10/171,236.57
  6. Step 6: Final answer
    x = 212,944.32

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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.