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Finding the Fourth Proportional to 144,503.97, 199,412.29 and 79,092.46

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Solution

The fourth proportional to 144,503.97, 199,412.29 and 79,092.46 is: 109,145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,503.97 : 199,412.29 = 79,092.46 : x
  2. Step 2: Convert to fraction form
    144,503.97/199,412.29 = 79,092.46/x
  3. Step 3: Cross multiply
    144,503.97x = 199,412.29 × 79,092.46
  4. Step 4: Simplify right side
    144,503.97x = 15,772,008,918.46
  5. Step 5: Solve for x
    x = 15,772,008,918.46/144,503.97
  6. Step 6: Final answer
    x = 109,145.85

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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.