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Finding the Fourth Proportional to 74,495.67, 111,813.72 and 27,156.53

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Solution

The fourth proportional to 74,495.67, 111,813.72 and 27,156.53 is: 40,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,495.67 : 111,813.72 = 27,156.53 : x
  2. Step 2: Convert to fraction form
    74,495.67/111,813.72 = 27,156.53/x
  3. Step 3: Cross multiply
    74,495.67x = 111,813.72 × 27,156.53
  4. Step 4: Simplify right side
    74,495.67x = 3,036,472,819.29
  5. Step 5: Solve for x
    x = 3,036,472,819.29/74,495.67
  6. Step 6: Final answer
    x = 40,760.40

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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.