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Finding the Fourth Proportional to 93,243.44, 128,723.60 and 63,187.56

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Solution

The fourth proportional to 93,243.44, 128,723.60 and 63,187.56 is: 87,231.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,243.44 : 128,723.60 = 63,187.56 : x
  2. Step 2: Convert to fraction form
    93,243.44/128,723.60 = 63,187.56/x
  3. Step 3: Cross multiply
    93,243.44x = 128,723.60 × 63,187.56
  4. Step 4: Simplify right side
    93,243.44x = 8,133,730,198.42
  5. Step 5: Solve for x
    x = 8,133,730,198.42/93,243.44
  6. Step 6: Final answer
    x = 87,231.13

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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.