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Finding the Fourth Proportional to 79,846.63, 119,655.12 and 54,914.83

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Solution

The fourth proportional to 79,846.63, 119,655.12 and 54,914.83 is: 82,293.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,846.63 : 119,655.12 = 54,914.83 : x
  2. Step 2: Convert to fraction form
    79,846.63/119,655.12 = 54,914.83/x
  3. Step 3: Cross multiply
    79,846.63x = 119,655.12 × 54,914.83
  4. Step 4: Simplify right side
    79,846.63x = 6,570,840,480.22
  5. Step 5: Solve for x
    x = 6,570,840,480.22/79,846.63
  6. Step 6: Final answer
    x = 82,293.28

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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.