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Finding the Fourth Proportional to 127,325, 191,008.08 and 43,090.28

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Solution

The fourth proportional to 127,325, 191,008.08 and 43,090.28 is: 64,642.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,325 : 191,008.08 = 43,090.28 : x
  2. Step 2: Convert to fraction form
    127,325/191,008.08 = 43,090.28/x
  3. Step 3: Cross multiply
    127,325x = 191,008.08 × 43,090.28
  4. Step 4: Simplify right side
    127,325x = 8,230,591,649.46
  5. Step 5: Solve for x
    x = 8,230,591,649.46/127,325
  6. Step 6: Final answer
    x = 64,642.38

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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.