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Finding the Fourth Proportional to 70,861.67, 97,793.54 and 39,030.56

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Solution

The fourth proportional to 70,861.67, 97,793.54 and 39,030.56 is: 53,864.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,861.67 : 97,793.54 = 39,030.56 : x
  2. Step 2: Convert to fraction form
    70,861.67/97,793.54 = 39,030.56/x
  3. Step 3: Cross multiply
    70,861.67x = 97,793.54 × 39,030.56
  4. Step 4: Simplify right side
    70,861.67x = 3,816,936,630.58
  5. Step 5: Solve for x
    x = 3,816,936,630.58/70,861.67
  6. Step 6: Final answer
    x = 53,864.62

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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.