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Finding the Fourth Proportional to 79,468.80, 119,030.40 and 48,249.60

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Solution

The fourth proportional to 79,468.80, 119,030.40 and 48,249.60 is: 72,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,468.80 : 119,030.40 = 48,249.60 : x
  2. Step 2: Convert to fraction form
    79,468.80/119,030.40 = 48,249.60/x
  3. Step 3: Cross multiply
    79,468.80x = 119,030.40 × 48,249.60
  4. Step 4: Simplify right side
    79,468.80x = 5,743,169,187.84
  5. Step 5: Solve for x
    x = 5,743,169,187.84/79,468.80
  6. Step 6: Final answer
    x = 72,269.48

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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.