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Finding the Fourth Proportional to 79,611.66, 109,827.50 and 50,917.01

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Solution

The fourth proportional to 79,611.66, 109,827.50 and 50,917.01 is: 70,242.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,611.66 : 109,827.50 = 50,917.01 : x
  2. Step 2: Convert to fraction form
    79,611.66/109,827.50 = 50,917.01/x
  3. Step 3: Cross multiply
    79,611.66x = 109,827.50 × 50,917.01
  4. Step 4: Simplify right side
    79,611.66x = 5,592,087,112.05
  5. Step 5: Solve for x
    x = 5,592,087,112.05/79,611.66
  6. Step 6: Final answer
    x = 70,242.06

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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.