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Finding the Fourth Proportional to 144,119.05, 198,880.54 and 79,592.98

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Solution

The fourth proportional to 144,119.05, 198,880.54 and 79,592.98 is: 109,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,119.05 : 198,880.54 = 79,592.98 : x
  2. Step 2: Convert to fraction form
    144,119.05/198,880.54 = 79,592.98/x
  3. Step 3: Cross multiply
    144,119.05x = 198,880.54 × 79,592.98
  4. Step 4: Simplify right side
    144,119.05x = 15,829,494,743.18
  5. Step 5: Solve for x
    x = 15,829,494,743.18/144,119.05
  6. Step 6: Final answer
    x = 109,836.24

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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.