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Finding the Fourth Proportional to 126,694.68, 174,808.80 and 75,697.44

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Solution

The fourth proportional to 126,694.68, 174,808.80 and 75,697.44 is: 104,444.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,694.68 : 174,808.80 = 75,697.44 : x
  2. Step 2: Convert to fraction form
    126,694.68/174,808.80 = 75,697.44/x
  3. Step 3: Cross multiply
    126,694.68x = 174,808.80 × 75,697.44
  4. Step 4: Simplify right side
    126,694.68x = 13,232,578,649.47
  5. Step 5: Solve for x
    x = 13,232,578,649.47/126,694.68
  6. Step 6: Final answer
    x = 104,444.63

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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.