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Finding the Fourth Proportional to 303,840.14, 419,278.31 and 167,872.98

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Solution

The fourth proportional to 303,840.14, 419,278.31 and 167,872.98 is: 231,653.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,840.14 : 419,278.31 = 167,872.98 : x
  2. Step 2: Convert to fraction form
    303,840.14/419,278.31 = 167,872.98/x
  3. Step 3: Cross multiply
    303,840.14x = 419,278.31 × 167,872.98
  4. Step 4: Simplify right side
    303,840.14x = 70,385,500,240.51
  5. Step 5: Solve for x
    x = 70,385,500,240.51/303,840.14
  6. Step 6: Final answer
    x = 231,653.07

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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.