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Finding the Fourth Proportional to 104,661.84, 156,991.23 and 25,776.84

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Solution

The fourth proportional to 104,661.84, 156,991.23 and 25,776.84 is: 38,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,661.84 : 156,991.23 = 25,776.84 : x
  2. Step 2: Convert to fraction form
    104,661.84/156,991.23 = 25,776.84/x
  3. Step 3: Cross multiply
    104,661.84x = 156,991.23 × 25,776.84
  4. Step 4: Simplify right side
    104,661.84x = 4,046,737,817.11
  5. Step 5: Solve for x
    x = 4,046,737,817.11/104,661.84
  6. Step 6: Final answer
    x = 38,664.88

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1.5x scale

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.