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Finding the Fourth Proportional to 93,992.36, 129,711.12 and 51,550.52

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Solution

The fourth proportional to 93,992.36, 129,711.12 and 51,550.52 is: 71,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,992.36 : 129,711.12 = 51,550.52 : x
  2. Step 2: Convert to fraction form
    93,992.36/129,711.12 = 51,550.52/x
  3. Step 3: Cross multiply
    93,992.36x = 129,711.12 × 51,550.52
  4. Step 4: Simplify right side
    93,992.36x = 6,686,675,685.78
  5. Step 5: Solve for x
    x = 6,686,675,685.78/93,992.36
  6. Step 6: Final answer
    x = 71,140.63

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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.