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Finding the Fourth Proportional to 310,933.20, 465,622.20 and 248,725.20

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Solution

The fourth proportional to 310,933.20, 465,622.20 and 248,725.20 is: 372,465.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,933.20 : 465,622.20 = 248,725.20 : x
  2. Step 2: Convert to fraction form
    310,933.20/465,622.20 = 248,725.20/x
  3. Step 3: Cross multiply
    310,933.20x = 465,622.20 × 248,725.20
  4. Step 4: Simplify right side
    310,933.20x = 115,811,974,819.44
  5. Step 5: Solve for x
    x = 115,811,974,819.44/310,933.20
  6. Step 6: Final answer
    x = 372,465.77

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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.