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Finding the Fourth Proportional to 168,081.52, 231,946.63 and 91,599.07

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Solution

The fourth proportional to 168,081.52, 231,946.63 and 91,599.07 is: 126,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,081.52 : 231,946.63 = 91,599.07 : x
  2. Step 2: Convert to fraction form
    168,081.52/231,946.63 = 91,599.07/x
  3. Step 3: Cross multiply
    168,081.52x = 231,946.63 × 91,599.07
  4. Step 4: Simplify right side
    168,081.52x = 21,246,095,597.63
  5. Step 5: Solve for x
    x = 21,246,095,597.63/168,081.52
  6. Step 6: Final answer
    x = 126,403.52

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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.