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Finding the Fourth Proportional to 70,734.80, 97,690.08 and 43,940.96

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Solution

The fourth proportional to 70,734.80, 97,690.08 and 43,940.96 is: 60,685.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,734.80 : 97,690.08 = 43,940.96 : x
  2. Step 2: Convert to fraction form
    70,734.80/97,690.08 = 43,940.96/x
  3. Step 3: Cross multiply
    70,734.80x = 97,690.08 × 43,940.96
  4. Step 4: Simplify right side
    70,734.80x = 4,292,595,897.68
  5. Step 5: Solve for x
    x = 4,292,595,897.68/70,734.80
  6. Step 6: Final answer
    x = 60,685.77

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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.