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Finding the Fourth Proportional to 104,596.80, 156,664.80 and 90,772.80

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Solution

The fourth proportional to 104,596.80, 156,664.80 and 90,772.80 is: 135,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,596.80 : 156,664.80 = 90,772.80 : x
  2. Step 2: Convert to fraction form
    104,596.80/156,664.80 = 90,772.80/x
  3. Step 3: Cross multiply
    104,596.80x = 156,664.80 × 90,772.80
  4. Step 4: Simplify right side
    104,596.80x = 14,220,902,557.44
  5. Step 5: Solve for x
    x = 14,220,902,557.44/104,596.80
  6. Step 6: Final answer
    x = 135,959.25

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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.