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Finding the Fourth Proportional to 93,266.77, 128,751.11 and 55,013.31

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Solution

The fourth proportional to 93,266.77, 128,751.11 and 55,013.31 is: 75,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,266.77 : 128,751.11 = 55,013.31 : x
  2. Step 2: Convert to fraction form
    93,266.77/128,751.11 = 55,013.31/x
  3. Step 3: Cross multiply
    93,266.77x = 128,751.11 × 55,013.31
  4. Step 4: Simplify right side
    93,266.77x = 7,083,024,727.27
  5. Step 5: Solve for x
    x = 7,083,024,727.27/93,266.77
  6. Step 6: Final answer
    x = 75,943.71

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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.