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Finding the Fourth Proportional to 259,551.72, 389,379.96 and 109,792.44

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Solution

The fourth proportional to 259,551.72, 389,379.96 and 109,792.44 is: 164,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,551.72 : 389,379.96 = 109,792.44 : x
  2. Step 2: Convert to fraction form
    259,551.72/389,379.96 = 109,792.44/x
  3. Step 3: Cross multiply
    259,551.72x = 389,379.96 × 109,792.44
  4. Step 4: Simplify right side
    259,551.72x = 42,750,975,895.50
  5. Step 5: Solve for x
    x = 42,750,975,895.50/259,551.72
  6. Step 6: Final answer
    x = 164,710.82

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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.