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Finding the Fourth Proportional to 68,994.60, 95,187.60 and 45,134.88

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Solution

The fourth proportional to 68,994.60, 95,187.60 and 45,134.88 is: 62,269.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,994.60 : 95,187.60 = 45,134.88 : x
  2. Step 2: Convert to fraction form
    68,994.60/95,187.60 = 45,134.88/x
  3. Step 3: Cross multiply
    68,994.60x = 95,187.60 × 45,134.88
  4. Step 4: Simplify right side
    68,994.60x = 4,296,280,903.49
  5. Step 5: Solve for x
    x = 4,296,280,903.49/68,994.60
  6. Step 6: Final answer
    x = 62,269.81

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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.