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Finding the Fourth Proportional to 69,203.51, 103,805.33 and 49,520.51

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Solution

The fourth proportional to 69,203.51, 103,805.33 and 49,520.51 is: 74,280.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,203.51 : 103,805.33 = 49,520.51 : x
  2. Step 2: Convert to fraction form
    69,203.51/103,805.33 = 49,520.51/x
  3. Step 3: Cross multiply
    69,203.51x = 103,805.33 × 49,520.51
  4. Step 4: Simplify right side
    69,203.51x = 5,140,492,634.72
  5. Step 5: Solve for x
    x = 5,140,492,634.72/69,203.51
  6. Step 6: Final answer
    x = 74,280.81

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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.