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Finding the Fourth Proportional to 79,349.94, 109,485.80 and 45,796.50

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Solution

The fourth proportional to 79,349.94, 109,485.80 and 45,796.50 is: 63,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,349.94 : 109,485.80 = 45,796.50 : x
  2. Step 2: Convert to fraction form
    79,349.94/109,485.80 = 45,796.50/x
  3. Step 3: Cross multiply
    79,349.94x = 109,485.80 × 45,796.50
  4. Step 4: Simplify right side
    79,349.94x = 5,014,066,439.70
  5. Step 5: Solve for x
    x = 5,014,066,439.70/79,349.94
  6. Step 6: Final answer
    x = 63,189.29

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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.