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Finding the Fourth Proportional to 248,883.12, 373,248 and 71,342.64

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Solution

The fourth proportional to 248,883.12, 373,248 and 71,342.64 is: 106,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,883.12 : 373,248 = 71,342.64 : x
  2. Step 2: Convert to fraction form
    248,883.12/373,248 = 71,342.64/x
  3. Step 3: Cross multiply
    248,883.12x = 373,248 × 71,342.64
  4. Step 4: Simplify right side
    248,883.12x = 26,628,497,694.72
  5. Step 5: Solve for x
    x = 26,628,497,694.72/248,883.12
  6. Step 6: Final answer
    x = 106,991.98

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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.