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Finding the Fourth Proportional to 78,073.01, 117,092.00 and 35,912.60

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Solution

The fourth proportional to 78,073.01, 117,092.00 and 35,912.60 is: 53,860.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,073.01 : 117,092.00 = 35,912.60 : x
  2. Step 2: Convert to fraction form
    78,073.01/117,092.00 = 35,912.60/x
  3. Step 3: Cross multiply
    78,073.01x = 117,092.00 × 35,912.60
  4. Step 4: Simplify right side
    78,073.01x = 4,205,077,394.18
  5. Step 5: Solve for x
    x = 4,205,077,394.18/78,073.01
  6. Step 6: Final answer
    x = 53,860.84

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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.