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Finding the Fourth Proportional to 53,800.01, 80,683.60 and 43,245

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Solution

The fourth proportional to 53,800.01, 80,683.60 and 43,245 is: 64,854.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,800.01 : 80,683.60 = 43,245 : x
  2. Step 2: Convert to fraction form
    53,800.01/80,683.60 = 43,245/x
  3. Step 3: Cross multiply
    53,800.01x = 80,683.60 × 43,245
  4. Step 4: Simplify right side
    53,800.01x = 3,489,162,282.00
  5. Step 5: Solve for x
    x = 3,489,162,282.00/53,800.01
  6. Step 6: Final answer
    x = 64,854.31

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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.