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Finding the Fourth Proportional to 74,492.80, 111,809.42 and 27,153.65

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Solution

The fourth proportional to 74,492.80, 111,809.42 and 27,153.65 is: 40,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,492.80 : 111,809.42 = 27,153.65 : x
  2. Step 2: Convert to fraction form
    74,492.80/111,809.42 = 27,153.65/x
  3. Step 3: Cross multiply
    74,492.80x = 111,809.42 × 27,153.65
  4. Step 4: Simplify right side
    74,492.80x = 3,036,033,162.57
  5. Step 5: Solve for x
    x = 3,036,033,162.57/74,492.80
  6. Step 6: Final answer
    x = 40,756.06

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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.