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Finding the Fourth Proportional to 303,713.70, 455,570.55 and 204,180.90

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Solution

The fourth proportional to 303,713.70, 455,570.55 and 204,180.90 is: 306,271.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,713.70 : 455,570.55 = 204,180.90 : x
  2. Step 2: Convert to fraction form
    303,713.70/455,570.55 = 204,180.90/x
  3. Step 3: Cross multiply
    303,713.70x = 455,570.55 × 204,180.90
  4. Step 4: Simplify right side
    303,713.70x = 93,018,804,912.50
  5. Step 5: Solve for x
    x = 93,018,804,912.50/303,713.70
  6. Step 6: Final answer
    x = 306,271.35

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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.