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Finding the Fourth Proportional to 248,243.94, 342,524.70 and 157,493.16

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Solution

The fourth proportional to 248,243.94, 342,524.70 and 157,493.16 is: 217,307.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,243.94 : 342,524.70 = 157,493.16 : x
  2. Step 2: Convert to fraction form
    248,243.94/342,524.70 = 157,493.16/x
  3. Step 3: Cross multiply
    248,243.94x = 342,524.70 × 157,493.16
  4. Step 4: Simplify right side
    248,243.94x = 53,945,297,381.05
  5. Step 5: Solve for x
    x = 53,945,297,381.05/248,243.94
  6. Step 6: Final answer
    x = 217,307.61

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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.