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Finding the Fourth Proportional to 330,993.88, 456,865.32 and 195,106.66

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Solution

The fourth proportional to 330,993.88, 456,865.32 and 195,106.66 is: 269,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,993.88 : 456,865.32 = 195,106.66 : x
  2. Step 2: Convert to fraction form
    330,993.88/456,865.32 = 195,106.66/x
  3. Step 3: Cross multiply
    330,993.88x = 456,865.32 × 195,106.66
  4. Step 4: Simplify right side
    330,993.88x = 89,137,466,655.03
  5. Step 5: Solve for x
    x = 89,137,466,655.03/330,993.88
  6. Step 6: Final answer
    x = 269,302.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.