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Finding the Fourth Proportional to 144,119.25, 198,886.53 and 79,592.84

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Solution

The fourth proportional to 144,119.25, 198,886.53 and 79,592.84 is: 109,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,119.25 : 198,886.53 = 79,592.84 : x
  2. Step 2: Convert to fraction form
    144,119.25/198,886.53 = 79,592.84/x
  3. Step 3: Cross multiply
    144,119.25x = 198,886.53 × 79,592.84
  4. Step 4: Simplify right side
    144,119.25x = 15,829,942,567.03
  5. Step 5: Solve for x
    x = 15,829,942,567.03/144,119.25
  6. Step 6: Final answer
    x = 109,839.20

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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.