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Finding the Fourth Proportional to 79,988.48, 120,007.48 and 48,003.27

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Solution

The fourth proportional to 79,988.48, 120,007.48 and 48,003.27 is: 72,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,988.48 : 120,007.48 = 48,003.27 : x
  2. Step 2: Convert to fraction form
    79,988.48/120,007.48 = 48,003.27/x
  3. Step 3: Cross multiply
    79,988.48x = 120,007.48 × 48,003.27
  4. Step 4: Simplify right side
    79,988.48x = 5,760,751,464.46
  5. Step 5: Solve for x
    x = 5,760,751,464.46/79,988.48
  6. Step 6: Final answer
    x = 72,019.76

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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.