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Finding the Fourth Proportional to 144,364.17, 199,223.84 and 79,837.79

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Solution

The fourth proportional to 144,364.17, 199,223.84 and 79,837.79 is: 110,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,364.17 : 199,223.84 = 79,837.79 : x
  2. Step 2: Convert to fraction form
    144,364.17/199,223.84 = 79,837.79/x
  3. Step 3: Cross multiply
    144,364.17x = 199,223.84 × 79,837.79
  4. Step 4: Simplify right side
    144,364.17x = 15,905,589,705.61
  5. Step 5: Solve for x
    x = 15,905,589,705.61/144,364.17
  6. Step 6: Final answer
    x = 110,176.85

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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.