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Finding the Fourth Proportional to 248,933.40, 372,708.90 and 242,021.40

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Solution

The fourth proportional to 248,933.40, 372,708.90 and 242,021.40 is: 362,360.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,933.40 : 372,708.90 = 242,021.40 : x
  2. Step 2: Convert to fraction form
    248,933.40/372,708.90 = 242,021.40/x
  3. Step 3: Cross multiply
    248,933.40x = 372,708.90 × 242,021.40
  4. Step 4: Simplify right side
    248,933.40x = 90,203,529,770.46
  5. Step 5: Solve for x
    x = 90,203,529,770.46/248,933.40
  6. Step 6: Final answer
    x = 362,360.09

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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.