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Finding the Fourth Proportional to 248,995, 373,495.74 and 82,783

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Solution

The fourth proportional to 248,995, 373,495.74 and 82,783 is: 124,175.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,995 : 373,495.74 = 82,783 : x
  2. Step 2: Convert to fraction form
    248,995/373,495.74 = 82,783/x
  3. Step 3: Cross multiply
    248,995x = 373,495.74 × 82,783
  4. Step 4: Simplify right side
    248,995x = 30,919,097,844.42
  5. Step 5: Solve for x
    x = 30,919,097,844.42/248,995
  6. Step 6: Final answer
    x = 124,175.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.