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Finding the Fourth Proportional to 74,356.67, 111,535.73 and 18,952.67

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Solution

The fourth proportional to 74,356.67, 111,535.73 and 18,952.67 is: 28,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,356.67 : 111,535.73 = 18,952.67 : x
  2. Step 2: Convert to fraction form
    74,356.67/111,535.73 = 18,952.67/x
  3. Step 3: Cross multiply
    74,356.67x = 111,535.73 × 18,952.67
  4. Step 4: Simplify right side
    74,356.67x = 2,113,899,231.46
  5. Step 5: Solve for x
    x = 2,113,899,231.46/74,356.67
  6. Step 6: Final answer
    x = 28,429.18

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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.