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Finding the Fourth Proportional to 162,989.53, 244,579.61 and 68,211.79

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Solution

The fourth proportional to 162,989.53, 244,579.61 and 68,211.79 is: 102,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,989.53 : 244,579.61 = 68,211.79 : x
  2. Step 2: Convert to fraction form
    162,989.53/244,579.61 = 68,211.79/x
  3. Step 3: Cross multiply
    162,989.53x = 244,579.61 × 68,211.79
  4. Step 4: Simplify right side
    162,989.53x = 16,683,212,995.60
  5. Step 5: Solve for x
    x = 16,683,212,995.60/162,989.53
  6. Step 6: Final answer
    x = 102,357.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.