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Finding the Fourth Proportional to 79,378.76, 119,055.18 and 23,205.54

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Solution

The fourth proportional to 79,378.76, 119,055.18 and 23,205.54 is: 34,804.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,378.76 : 119,055.18 = 23,205.54 : x
  2. Step 2: Convert to fraction form
    79,378.76/119,055.18 = 23,205.54/x
  3. Step 3: Cross multiply
    79,378.76x = 119,055.18 × 23,205.54
  4. Step 4: Simplify right side
    79,378.76x = 2,762,739,741.70
  5. Step 5: Solve for x
    x = 2,762,739,741.70/79,378.76
  6. Step 6: Final answer
    x = 34,804.52

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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.