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Finding the Fourth Proportional to 79,708.86, 119,518.65 and 36,968.46

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Solution

The fourth proportional to 79,708.86, 119,518.65 and 36,968.46 is: 55,431.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,708.86 : 119,518.65 = 36,968.46 : x
  2. Step 2: Convert to fraction form
    79,708.86/119,518.65 = 36,968.46/x
  3. Step 3: Cross multiply
    79,708.86x = 119,518.65 × 36,968.46
  4. Step 4: Simplify right side
    79,708.86x = 4,418,420,431.78
  5. Step 5: Solve for x
    x = 4,418,420,431.78/79,708.86
  6. Step 6: Final answer
    x = 55,431.99

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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.