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Finding the Fourth Proportional to 55,053.80, 75,974.31 and 29,903.30

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Solution

The fourth proportional to 55,053.80, 75,974.31 and 29,903.30 is: 41,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,053.80 : 75,974.31 = 29,903.30 : x
  2. Step 2: Convert to fraction form
    55,053.80/75,974.31 = 29,903.30/x
  3. Step 3: Cross multiply
    55,053.80x = 75,974.31 × 29,903.30
  4. Step 4: Simplify right side
    55,053.80x = 2,271,882,204.35
  5. Step 5: Solve for x
    x = 2,271,882,204.35/55,053.80
  6. Step 6: Final answer
    x = 41,266.59

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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.