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Finding the Fourth Proportional to 126,753.52, 174,938.28 and 73,028.08

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Solution

The fourth proportional to 126,753.52, 174,938.28 and 73,028.08 is: 100,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,753.52 : 174,938.28 = 73,028.08 : x
  2. Step 2: Convert to fraction form
    126,753.52/174,938.28 = 73,028.08/x
  3. Step 3: Cross multiply
    126,753.52x = 174,938.28 × 73,028.08
  4. Step 4: Simplify right side
    126,753.52x = 12,775,406,706.90
  5. Step 5: Solve for x
    x = 12,775,406,706.90/126,753.52
  6. Step 6: Final answer
    x = 100,789.36

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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.