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Finding the Fourth Proportional to 93,113.86, 128,493.30 and 50,672.56

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Solution

The fourth proportional to 93,113.86, 128,493.30 and 50,672.56 is: 69,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,113.86 : 128,493.30 = 50,672.56 : x
  2. Step 2: Convert to fraction form
    93,113.86/128,493.30 = 50,672.56/x
  3. Step 3: Cross multiply
    93,113.86x = 128,493.30 × 50,672.56
  4. Step 4: Simplify right side
    93,113.86x = 6,511,084,453.85
  5. Step 5: Solve for x
    x = 6,511,084,453.85/93,113.86
  6. Step 6: Final answer
    x = 69,926.05

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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.