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Finding the Fourth Proportional to 144,054.68, 198,790.25 and 79,522.53

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Solution

The fourth proportional to 144,054.68, 198,790.25 and 79,522.53 is: 109,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,054.68 : 198,790.25 = 79,522.53 : x
  2. Step 2: Convert to fraction form
    144,054.68/198,790.25 = 79,522.53/x
  3. Step 3: Cross multiply
    144,054.68x = 198,790.25 × 79,522.53
  4. Step 4: Simplify right side
    144,054.68x = 15,808,304,265.39
  5. Step 5: Solve for x
    x = 15,808,304,265.39/144,054.68
  6. Step 6: Final answer
    x = 109,738.22

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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.