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Finding the Fourth Proportional to 127,996.40, 192,090.60 and 65,634.80

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Solution

The fourth proportional to 127,996.40, 192,090.60 and 65,634.80 is: 98,501.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,996.40 : 192,090.60 = 65,634.80 : x
  2. Step 2: Convert to fraction form
    127,996.40/192,090.60 = 65,634.80/x
  3. Step 3: Cross multiply
    127,996.40x = 192,090.60 × 65,634.80
  4. Step 4: Simplify right side
    127,996.40x = 12,607,828,112.88
  5. Step 5: Solve for x
    x = 12,607,828,112.88/127,996.40
  6. Step 6: Final answer
    x = 98,501.43

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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.