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Finding the Fourth Proportional to 73,100.73, 109,485.02 and 57,206.71

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Solution

The fourth proportional to 73,100.73, 109,485.02 and 57,206.71 is: 85,680.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,100.73 : 109,485.02 = 57,206.71 : x
  2. Step 2: Convert to fraction form
    73,100.73/109,485.02 = 57,206.71/x
  3. Step 3: Cross multiply
    73,100.73x = 109,485.02 × 57,206.71
  4. Step 4: Simplify right side
    73,100.73x = 6,263,277,130.72
  5. Step 5: Solve for x
    x = 6,263,277,130.72/73,100.73
  6. Step 6: Final answer
    x = 85,680.09

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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.