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Finding the Fourth Proportional to 168,805.68, 232,842.09 and 108,280.47

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Solution

The fourth proportional to 168,805.68, 232,842.09 and 108,280.47 is: 149,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,805.68 : 232,842.09 = 108,280.47 : x
  2. Step 2: Convert to fraction form
    168,805.68/232,842.09 = 108,280.47/x
  3. Step 3: Cross multiply
    168,805.68x = 232,842.09 × 108,280.47
  4. Step 4: Simplify right side
    168,805.68x = 25,212,250,940.98
  5. Step 5: Solve for x
    x = 25,212,250,940.98/168,805.68
  6. Step 6: Final answer
    x = 149,356.65

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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.