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Finding the Fourth Proportional to 123,748.44, 170,775.39 and 70,033.44

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Solution

The fourth proportional to 123,748.44, 170,775.39 and 70,033.44 is: 96,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,748.44 : 170,775.39 = 70,033.44 : x
  2. Step 2: Convert to fraction form
    123,748.44/170,775.39 = 70,033.44/x
  3. Step 3: Cross multiply
    123,748.44x = 170,775.39 × 70,033.44
  4. Step 4: Simplify right side
    123,748.44x = 11,959,988,029.04
  5. Step 5: Solve for x
    x = 11,959,988,029.04/123,748.44
  6. Step 6: Final answer
    x = 96,647.59

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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.