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Finding the Fourth Proportional to 141,803.84, 212,717.64 and 36,624.80

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Solution

The fourth proportional to 141,803.84, 212,717.64 and 36,624.80 is: 54,940.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,803.84 : 212,717.64 = 36,624.80 : x
  2. Step 2: Convert to fraction form
    141,803.84/212,717.64 = 36,624.80/x
  3. Step 3: Cross multiply
    141,803.84x = 212,717.64 × 36,624.80
  4. Step 4: Simplify right side
    141,803.84x = 7,790,741,021.47
  5. Step 5: Solve for x
    x = 7,790,741,021.47/141,803.84
  6. Step 6: Final answer
    x = 54,940.27

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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.