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Finding the Fourth Proportional to 79,971.28, 119,804.28 and 44,804.56

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Solution

The fourth proportional to 79,971.28, 119,804.28 and 44,804.56 is: 67,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,971.28 : 119,804.28 = 44,804.56 : x
  2. Step 2: Convert to fraction form
    79,971.28/119,804.28 = 44,804.56/x
  3. Step 3: Cross multiply
    79,971.28x = 119,804.28 × 44,804.56
  4. Step 4: Simplify right side
    79,971.28x = 5,367,778,051.52
  5. Step 5: Solve for x
    x = 5,367,778,051.52/79,971.28
  6. Step 6: Final answer
    x = 67,121.32

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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.