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Finding the Fourth Proportional to 70,836.39, 97,744.05 and 40,622.99

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Solution

The fourth proportional to 70,836.39, 97,744.05 and 40,622.99 is: 56,053.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,836.39 : 97,744.05 = 40,622.99 : x
  2. Step 2: Convert to fraction form
    70,836.39/97,744.05 = 40,622.99/x
  3. Step 3: Cross multiply
    70,836.39x = 97,744.05 × 40,622.99
  4. Step 4: Simplify right side
    70,836.39x = 3,970,655,076.99
  5. Step 5: Solve for x
    x = 3,970,655,076.99/70,836.39
  6. Step 6: Final answer
    x = 56,053.89

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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.