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Finding the Fourth Proportional to 110,076.40, 164,920.20 and 68,474.80

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Solution

The fourth proportional to 110,076.40, 164,920.20 and 68,474.80 is: 102,591.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,076.40 : 164,920.20 = 68,474.80 : x
  2. Step 2: Convert to fraction form
    110,076.40/164,920.20 = 68,474.80/x
  3. Step 3: Cross multiply
    110,076.40x = 164,920.20 × 68,474.80
  4. Step 4: Simplify right side
    110,076.40x = 11,292,877,710.96
  5. Step 5: Solve for x
    x = 11,292,877,710.96/110,076.40
  6. Step 6: Final answer
    x = 102,591.27

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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.