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Finding the Fourth Proportional to 336,042.84, 504,162.72 and 99,391.80

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Solution

The fourth proportional to 336,042.84, 504,162.72 and 99,391.80 is: 149,116.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,042.84 : 504,162.72 = 99,391.80 : x
  2. Step 2: Convert to fraction form
    336,042.84/504,162.72 = 99,391.80/x
  3. Step 3: Cross multiply
    336,042.84x = 504,162.72 × 99,391.80
  4. Step 4: Simplify right side
    336,042.84x = 50,109,640,233.70
  5. Step 5: Solve for x
    x = 50,109,640,233.70/336,042.84
  6. Step 6: Final answer
    x = 149,116.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.