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Finding the Fourth Proportional to 303,418.95, 454,964.40 and 125,943.90

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Solution

The fourth proportional to 303,418.95, 454,964.40 and 125,943.90 is: 188,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,418.95 : 454,964.40 = 125,943.90 : x
  2. Step 2: Convert to fraction form
    303,418.95/454,964.40 = 125,943.90/x
  3. Step 3: Cross multiply
    303,418.95x = 454,964.40 × 125,943.90
  4. Step 4: Simplify right side
    303,418.95x = 57,299,990,897.16
  5. Step 5: Solve for x
    x = 57,299,990,897.16/303,418.95
  6. Step 6: Final answer
    x = 188,847.77

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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.