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Finding the Fourth Proportional to 217,674.16, 300,373.80 and 122,162.38

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Solution

The fourth proportional to 217,674.16, 300,373.80 and 122,162.38 is: 168,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,674.16 : 300,373.80 = 122,162.38 : x
  2. Step 2: Convert to fraction form
    217,674.16/300,373.80 = 122,162.38/x
  3. Step 3: Cross multiply
    217,674.16x = 300,373.80 × 122,162.38
  4. Step 4: Simplify right side
    217,674.16x = 36,694,378,297.64
  5. Step 5: Solve for x
    x = 36,694,378,297.64/217,674.16
  6. Step 6: Final answer
    x = 168,574.80

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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.