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Finding the Fourth Proportional to 55,182.80, 82,774.20 and 49,653.20

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Solution

The fourth proportional to 55,182.80, 82,774.20 and 49,653.20 is: 74,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,182.80 : 82,774.20 = 49,653.20 : x
  2. Step 2: Convert to fraction form
    55,182.80/82,774.20 = 49,653.20/x
  3. Step 3: Cross multiply
    55,182.80x = 82,774.20 × 49,653.20
  4. Step 4: Simplify right side
    55,182.80x = 4,110,003,907.44
  5. Step 5: Solve for x
    x = 4,110,003,907.44/55,182.80
  6. Step 6: Final answer
    x = 74,479.80

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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.