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Finding the Fourth Proportional to 167,978.07, 231,809.75 and 92,526.57

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Solution

The fourth proportional to 167,978.07, 231,809.75 and 92,526.57 is: 127,686.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,978.07 : 231,809.75 = 92,526.57 : x
  2. Step 2: Convert to fraction form
    167,978.07/231,809.75 = 92,526.57/x
  3. Step 3: Cross multiply
    167,978.07x = 231,809.75 × 92,526.57
  4. Step 4: Simplify right side
    167,978.07x = 21,448,560,597.42
  5. Step 5: Solve for x
    x = 21,448,560,597.42/167,978.07
  6. Step 6: Final answer
    x = 127,686.67

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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.