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Finding the Fourth Proportional to 84,812.58, 127,199.43 and 50,628.01

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Solution

The fourth proportional to 84,812.58, 127,199.43 and 50,628.01 is: 75,930.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,812.58 : 127,199.43 = 50,628.01 : x
  2. Step 2: Convert to fraction form
    84,812.58/127,199.43 = 50,628.01/x
  3. Step 3: Cross multiply
    84,812.58x = 127,199.43 × 50,628.01
  4. Step 4: Simplify right side
    84,812.58x = 6,439,853,760.89
  5. Step 5: Solve for x
    x = 6,439,853,760.89/84,812.58
  6. Step 6: Final answer
    x = 75,930.41

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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.