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Finding the Fourth Proportional to 93,115.96, 128,500.42 and 50,674.44

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Solution

The fourth proportional to 93,115.96, 128,500.42 and 50,674.44 is: 69,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,115.96 : 128,500.42 = 50,674.44 : x
  2. Step 2: Convert to fraction form
    93,115.96/128,500.42 = 50,674.44/x
  3. Step 3: Cross multiply
    93,115.96x = 128,500.42 × 50,674.44
  4. Step 4: Simplify right side
    93,115.96x = 6,511,686,823.26
  5. Step 5: Solve for x
    x = 6,511,686,823.26/93,115.96
  6. Step 6: Final answer
    x = 69,930.94

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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.