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Finding the Fourth Proportional to 126,672.26, 174,774.92 and 75,664.13

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Solution

The fourth proportional to 126,672.26, 174,774.92 and 75,664.13 is: 104,396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,672.26 : 174,774.92 = 75,664.13 : x
  2. Step 2: Convert to fraction form
    126,672.26/174,774.92 = 75,664.13/x
  3. Step 3: Cross multiply
    126,672.26x = 174,774.92 × 75,664.13
  4. Step 4: Simplify right side
    126,672.26x = 13,224,191,015.42
  5. Step 5: Solve for x
    x = 13,224,191,015.42/126,672.26
  6. Step 6: Final answer
    x = 104,396.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.