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Finding the Fourth Proportional to 178,863.53, 246,728.89 and 111,678.89

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Solution

The fourth proportional to 178,863.53, 246,728.89 and 111,678.89 is: 154,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,863.53 : 246,728.89 = 111,678.89 : x
  2. Step 2: Convert to fraction form
    178,863.53/246,728.89 = 111,678.89/x
  3. Step 3: Cross multiply
    178,863.53x = 246,728.89 × 111,678.89
  4. Step 4: Simplify right side
    178,863.53x = 27,554,408,007.74
  5. Step 5: Solve for x
    x = 27,554,408,007.74/178,863.53
  6. Step 6: Final answer
    x = 154,052.69

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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.