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Finding the Fourth Proportional to 93,578.74, 129,100.06 and 68,029.10

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Solution

The fourth proportional to 93,578.74, 129,100.06 and 68,029.10 is: 93,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,578.74 : 129,100.06 = 68,029.10 : x
  2. Step 2: Convert to fraction form
    93,578.74/129,100.06 = 68,029.10/x
  3. Step 3: Cross multiply
    93,578.74x = 129,100.06 × 68,029.10
  4. Step 4: Simplify right side
    93,578.74x = 8,782,560,891.75
  5. Step 5: Solve for x
    x = 8,782,560,891.75/93,578.74
  6. Step 6: Final answer
    x = 93,852.10

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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.