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Finding the Fourth Proportional to 93,102.68, 128,484.44 and 50,663.96

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Solution

The fourth proportional to 93,102.68, 128,484.44 and 50,663.96 is: 69,917.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,102.68 : 128,484.44 = 50,663.96 : x
  2. Step 2: Convert to fraction form
    93,102.68/128,484.44 = 50,663.96/x
  3. Step 3: Cross multiply
    93,102.68x = 128,484.44 × 50,663.96
  4. Step 4: Simplify right side
    93,102.68x = 6,509,530,528.78
  5. Step 5: Solve for x
    x = 6,509,530,528.78/93,102.68
  6. Step 6: Final answer
    x = 69,917.76

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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.