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Finding the Fourth Proportional to 127,958.40, 192,033.60 and 65,596.80

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Solution

The fourth proportional to 127,958.40, 192,033.60 and 65,596.80 is: 98,444.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,958.40 : 192,033.60 = 65,596.80 : x
  2. Step 2: Convert to fraction form
    127,958.40/192,033.60 = 65,596.80/x
  3. Step 3: Cross multiply
    127,958.40x = 192,033.60 × 65,596.80
  4. Step 4: Simplify right side
    127,958.40x = 12,596,789,652.48
  5. Step 5: Solve for x
    x = 12,596,789,652.48/127,958.40
  6. Step 6: Final answer
    x = 98,444.41

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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.