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Finding the Fourth Proportional to 93,231.99, 128,655.67 and 52,940.43

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Solution

The fourth proportional to 93,231.99, 128,655.67 and 52,940.43 is: 73,055.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,231.99 : 128,655.67 = 52,940.43 : x
  2. Step 2: Convert to fraction form
    93,231.99/128,655.67 = 52,940.43/x
  3. Step 3: Cross multiply
    93,231.99x = 128,655.67 × 52,940.43
  4. Step 4: Simplify right side
    93,231.99x = 6,811,086,491.74
  5. Step 5: Solve for x
    x = 6,811,086,491.74/93,231.99
  6. Step 6: Final answer
    x = 73,055.25

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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.