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Finding the Fourth Proportional to 94,138.57, 129,912.14 and 51,698.01

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Solution

The fourth proportional to 94,138.57, 129,912.14 and 51,698.01 is: 71,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,138.57 : 129,912.14 = 51,698.01 : x
  2. Step 2: Convert to fraction form
    94,138.57/129,912.14 = 51,698.01/x
  3. Step 3: Cross multiply
    94,138.57x = 129,912.14 × 51,698.01
  4. Step 4: Simplify right side
    94,138.57x = 6,716,199,112.84
  5. Step 5: Solve for x
    x = 6,716,199,112.84/94,138.57
  6. Step 6: Final answer
    x = 71,343.76

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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.