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Finding the Fourth Proportional to 93,211.70, 139,817.55 and 34,049.30

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Solution

The fourth proportional to 93,211.70, 139,817.55 and 34,049.30 is: 51,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,211.70 : 139,817.55 = 34,049.30 : x
  2. Step 2: Convert to fraction form
    93,211.70/139,817.55 = 34,049.30/x
  3. Step 3: Cross multiply
    93,211.70x = 139,817.55 × 34,049.30
  4. Step 4: Simplify right side
    93,211.70x = 4,760,689,705.22
  5. Step 5: Solve for x
    x = 4,760,689,705.22/93,211.70
  6. Step 6: Final answer
    x = 51,073.95

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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.