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Finding the Fourth Proportional to 144,241.61, 199,052.91 and 79,709.04

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Solution

The fourth proportional to 144,241.61, 199,052.91 and 79,709.04 is: 109,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,241.61 : 199,052.91 = 79,709.04 : x
  2. Step 2: Convert to fraction form
    144,241.61/199,052.91 = 79,709.04/x
  3. Step 3: Cross multiply
    144,241.61x = 199,052.91 × 79,709.04
  4. Step 4: Simplify right side
    144,241.61x = 15,866,316,365.31
  5. Step 5: Solve for x
    x = 15,866,316,365.31/144,241.61
  6. Step 6: Final answer
    x = 109,998.20

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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.