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Finding the Fourth Proportional to 91,794.48, 137,698.56 and 47,393.52

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Solution

The fourth proportional to 91,794.48, 137,698.56 and 47,393.52 is: 71,093.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,794.48 : 137,698.56 = 47,393.52 : x
  2. Step 2: Convert to fraction form
    91,794.48/137,698.56 = 47,393.52/x
  3. Step 3: Cross multiply
    91,794.48x = 137,698.56 × 47,393.52
  4. Step 4: Simplify right side
    91,794.48x = 6,526,019,457.33
  5. Step 5: Solve for x
    x = 6,526,019,457.33/91,794.48
  6. Step 6: Final answer
    x = 71,093.81

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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.