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Finding the Fourth Proportional to 188,290.53, 282,435.67 and 55,170.71

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Solution

The fourth proportional to 188,290.53, 282,435.67 and 55,170.71 is: 82,756.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,290.53 : 282,435.67 = 55,170.71 : x
  2. Step 2: Convert to fraction form
    188,290.53/282,435.67 = 55,170.71/x
  3. Step 3: Cross multiply
    188,290.53x = 282,435.67 × 55,170.71
  4. Step 4: Simplify right side
    188,290.53x = 15,582,176,443.23
  5. Step 5: Solve for x
    x = 15,582,176,443.23/188,290.53
  6. Step 6: Final answer
    x = 82,756.03

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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.