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Finding the Fourth Proportional to 78,893.01, 108,871.81 and 43,083.02

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Solution

The fourth proportional to 78,893.01, 108,871.81 and 43,083.02 is: 59,454.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,893.01 : 108,871.81 = 43,083.02 : x
  2. Step 2: Convert to fraction form
    78,893.01/108,871.81 = 43,083.02/x
  3. Step 3: Cross multiply
    78,893.01x = 108,871.81 × 43,083.02
  4. Step 4: Simplify right side
    78,893.01x = 4,690,526,532.14
  5. Step 5: Solve for x
    x = 4,690,526,532.14/78,893.01
  6. Step 6: Final answer
    x = 59,454.27

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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.