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Finding the Fourth Proportional to 93,195.88, 128,611.78 and 50,754.36

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Solution

The fourth proportional to 93,195.88, 128,611.78 and 50,754.36 is: 70,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,195.88 : 128,611.78 = 50,754.36 : x
  2. Step 2: Convert to fraction form
    93,195.88/128,611.78 = 50,754.36/x
  3. Step 3: Cross multiply
    93,195.88x = 128,611.78 × 50,754.36
  4. Step 4: Simplify right side
    93,195.88x = 6,527,608,582.36
  5. Step 5: Solve for x
    x = 6,527,608,582.36/93,195.88
  6. Step 6: Final answer
    x = 70,041.81

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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.