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Finding the Fourth Proportional to 68,089.80, 101,675.70 and 55,634.46

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Solution

The fourth proportional to 68,089.80, 101,675.70 and 55,634.46 is: 83,076.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,089.80 : 101,675.70 = 55,634.46 : x
  2. Step 2: Convert to fraction form
    68,089.80/101,675.70 = 55,634.46/x
  3. Step 3: Cross multiply
    68,089.80x = 101,675.70 × 55,634.46
  4. Step 4: Simplify right side
    68,089.80x = 5,656,672,664.62
  5. Step 5: Solve for x
    x = 5,656,672,664.62/68,089.80
  6. Step 6: Final answer
    x = 83,076.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.