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Finding the Fourth Proportional to 93,578.49, 129,141.14 and 51,137.73

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Solution

The fourth proportional to 93,578.49, 129,141.14 and 51,137.73 is: 70,571.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,578.49 : 129,141.14 = 51,137.73 : x
  2. Step 2: Convert to fraction form
    93,578.49/129,141.14 = 51,137.73/x
  3. Step 3: Cross multiply
    93,578.49x = 129,141.14 × 51,137.73
  4. Step 4: Simplify right side
    93,578.49x = 6,603,984,493.52
  5. Step 5: Solve for x
    x = 6,603,984,493.52/93,578.49
  6. Step 6: Final answer
    x = 70,571.61

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1.5x scale

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.