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Finding the Fourth Proportional to 192,922.88, 266,218.80 and 108,028.40

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Solution

The fourth proportional to 192,922.88, 266,218.80 and 108,028.40 is: 149,070.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,922.88 : 266,218.80 = 108,028.40 : x
  2. Step 2: Convert to fraction form
    192,922.88/266,218.80 = 108,028.40/x
  3. Step 3: Cross multiply
    192,922.88x = 266,218.80 × 108,028.40
  4. Step 4: Simplify right side
    192,922.88x = 28,759,191,013.92
  5. Step 5: Solve for x
    x = 28,759,191,013.92/192,922.88
  6. Step 6: Final answer
    x = 149,070.92

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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.