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Finding the Fourth Proportional to 303,319.46, 418,579.64 and 167,361.86

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Solution

The fourth proportional to 303,319.46, 418,579.64 and 167,361.86 is: 230,958.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,319.46 : 418,579.64 = 167,361.86 : x
  2. Step 2: Convert to fraction form
    303,319.46/418,579.64 = 167,361.86/x
  3. Step 3: Cross multiply
    303,319.46x = 418,579.64 × 167,361.86
  4. Step 4: Simplify right side
    303,319.46x = 70,054,264,178.82
  5. Step 5: Solve for x
    x = 70,054,264,178.82/303,319.46
  6. Step 6: Final answer
    x = 230,958.69

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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.