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Finding the Fourth Proportional to 303,723.98, 455,585.99 and 79,083.78

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Solution

The fourth proportional to 303,723.98, 455,585.99 and 79,083.78 is: 118,625.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,723.98 : 455,585.99 = 79,083.78 : x
  2. Step 2: Convert to fraction form
    303,723.98/455,585.99 = 79,083.78/x
  3. Step 3: Cross multiply
    303,723.98x = 455,585.99 × 79,083.78
  4. Step 4: Simplify right side
    303,723.98x = 36,029,460,100.38
  5. Step 5: Solve for x
    x = 36,029,460,100.38/303,723.98
  6. Step 6: Final answer
    x = 118,625.67

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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.