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Finding the Fourth Proportional to 248,754.40, 372,912.90 and 148,954.30

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Solution

The fourth proportional to 248,754.40, 372,912.90 and 148,954.30 is: 223,300.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,754.40 : 372,912.90 = 148,954.30 : x
  2. Step 2: Convert to fraction form
    248,754.40/372,912.90 = 148,954.30/x
  3. Step 3: Cross multiply
    248,754.40x = 372,912.90 × 148,954.30
  4. Step 4: Simplify right side
    248,754.40x = 55,546,979,980.47
  5. Step 5: Solve for x
    x = 55,546,979,980.47/248,754.40
  6. Step 6: Final answer
    x = 223,300.49

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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.