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Finding the Fourth Proportional to 93,266.92, 128,757.06 and 72,524.44

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Solution

The fourth proportional to 93,266.92, 128,757.06 and 72,524.44 is: 100,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,266.92 : 128,757.06 = 72,524.44 : x
  2. Step 2: Convert to fraction form
    93,266.92/128,757.06 = 72,524.44/x
  3. Step 3: Cross multiply
    93,266.92x = 128,757.06 × 72,524.44
  4. Step 4: Simplify right side
    93,266.92x = 9,338,033,672.55
  5. Step 5: Solve for x
    x = 9,338,033,672.55/93,266.92
  6. Step 6: Final answer
    x = 100,121.60

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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.