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Finding the Fourth Proportional to 192,010.90, 264,989.94 and 105,986.74

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Solution

The fourth proportional to 192,010.90, 264,989.94 and 105,986.74 is: 146,269.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,010.90 : 264,989.94 = 105,986.74 : x
  2. Step 2: Convert to fraction form
    192,010.90/264,989.94 = 105,986.74/x
  3. Step 3: Cross multiply
    192,010.90x = 264,989.94 × 105,986.74
  4. Step 4: Simplify right side
    192,010.90x = 28,085,419,873.40
  5. Step 5: Solve for x
    x = 28,085,419,873.40/192,010.90
  6. Step 6: Final answer
    x = 146,269.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.