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Finding the Fourth Proportional to 193,322.32, 289,891.45 and 79,452.33

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Solution

The fourth proportional to 193,322.32, 289,891.45 and 79,452.33 is: 119,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,322.32 : 289,891.45 = 79,452.33 : x
  2. Step 2: Convert to fraction form
    193,322.32/289,891.45 = 79,452.33/x
  3. Step 3: Cross multiply
    193,322.32x = 289,891.45 × 79,452.33
  4. Step 4: Simplify right side
    193,322.32x = 23,032,551,149.58
  5. Step 5: Solve for x
    x = 23,032,551,149.58/193,322.32
  6. Step 6: Final answer
    x = 119,140.67

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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.