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Finding the Fourth Proportional to 98,996.46, 136,559.97 and 58,671.42

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Solution

The fourth proportional to 98,996.46, 136,559.97 and 58,671.42 is: 80,933.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,996.46 : 136,559.97 = 58,671.42 : x
  2. Step 2: Convert to fraction form
    98,996.46/136,559.97 = 58,671.42/x
  3. Step 3: Cross multiply
    98,996.46x = 136,559.97 × 58,671.42
  4. Step 4: Simplify right side
    98,996.46x = 8,012,167,355.06
  5. Step 5: Solve for x
    x = 8,012,167,355.06/98,996.46
  6. Step 6: Final answer
    x = 80,933.88

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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.