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Finding the Fourth Proportional to 167,409.39, 231,026.63 and 90,929.97

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Solution

The fourth proportional to 167,409.39, 231,026.63 and 90,929.97 is: 125,484.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,409.39 : 231,026.63 = 90,929.97 : x
  2. Step 2: Convert to fraction form
    167,409.39/231,026.63 = 90,929.97/x
  3. Step 3: Cross multiply
    167,409.39x = 231,026.63 × 90,929.97
  4. Step 4: Simplify right side
    167,409.39x = 21,007,245,339.99
  5. Step 5: Solve for x
    x = 21,007,245,339.99/167,409.39
  6. Step 6: Final answer
    x = 125,484.28

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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.