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Finding the Fourth Proportional to 68,311.58, 94,276.76 and 51,053.99

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Solution

The fourth proportional to 68,311.58, 94,276.76 and 51,053.99 is: 70,459.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,311.58 : 94,276.76 = 51,053.99 : x
  2. Step 2: Convert to fraction form
    68,311.58/94,276.76 = 51,053.99/x
  3. Step 3: Cross multiply
    68,311.58x = 94,276.76 × 51,053.99
  4. Step 4: Simplify right side
    68,311.58x = 4,813,204,035.62
  5. Step 5: Solve for x
    x = 4,813,204,035.62/68,311.58
  6. Step 6: Final answer
    x = 70,459.57

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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.