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Finding the Fourth Proportional to 73,965.96, 110,961 and 40,701.60

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Solution

The fourth proportional to 73,965.96, 110,961 and 40,701.60 is: 61,059.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,965.96 : 110,961 = 40,701.60 : x
  2. Step 2: Convert to fraction form
    73,965.96/110,961 = 40,701.60/x
  3. Step 3: Cross multiply
    73,965.96x = 110,961 × 40,701.60
  4. Step 4: Simplify right side
    73,965.96x = 4,516,290,237.60
  5. Step 5: Solve for x
    x = 4,516,290,237.60/73,965.96
  6. Step 6: Final answer
    x = 61,059.04

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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.