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Finding the Fourth Proportional to 93,912.62, 129,599.80 and 51,471.86

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Solution

The fourth proportional to 93,912.62, 129,599.80 and 51,471.86 is: 71,031.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,912.62 : 129,599.80 = 51,471.86 : x
  2. Step 2: Convert to fraction form
    93,912.62/129,599.80 = 51,471.86/x
  3. Step 3: Cross multiply
    93,912.62x = 129,599.80 × 51,471.86
  4. Step 4: Simplify right side
    93,912.62x = 6,670,741,984.95
  5. Step 5: Solve for x
    x = 6,670,741,984.95/93,912.62
  6. Step 6: Final answer
    x = 71,031.37

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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.