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Finding the Fourth Proportional to 93,102.06, 128,481.45 and 50,660.90

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Solution

The fourth proportional to 93,102.06, 128,481.45 and 50,660.90 is: 69,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,102.06 : 128,481.45 = 50,660.90 : x
  2. Step 2: Convert to fraction form
    93,102.06/128,481.45 = 50,660.90/x
  3. Step 3: Cross multiply
    93,102.06x = 128,481.45 × 50,660.90
  4. Step 4: Simplify right side
    93,102.06x = 6,508,985,890.31
  5. Step 5: Solve for x
    x = 6,508,985,890.31/93,102.06
  6. Step 6: Final answer
    x = 69,912.37

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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.