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Finding the Fourth Proportional to 126,528.43, 174,602.41 and 69,936.43

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Solution

The fourth proportional to 126,528.43, 174,602.41 and 69,936.43 is: 96,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,528.43 : 174,602.41 = 69,936.43 : x
  2. Step 2: Convert to fraction form
    126,528.43/174,602.41 = 69,936.43/x
  3. Step 3: Cross multiply
    126,528.43x = 174,602.41 × 69,936.43
  4. Step 4: Simplify right side
    126,528.43x = 12,211,069,224.80
  5. Step 5: Solve for x
    x = 12,211,069,224.80/126,528.43
  6. Step 6: Final answer
    x = 96,508.50

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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.