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Finding the Fourth Proportional to 543,568.62, 815,392.74 and 144,200.52

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Solution

The fourth proportional to 543,568.62, 815,392.74 and 144,200.52 is: 216,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,568.62 : 815,392.74 = 144,200.52 : x
  2. Step 2: Convert to fraction form
    543,568.62/815,392.74 = 144,200.52/x
  3. Step 3: Cross multiply
    543,568.62x = 815,392.74 × 144,200.52
  4. Step 4: Simplify right side
    543,568.62x = 117,580,057,112.23
  5. Step 5: Solve for x
    x = 117,580,057,112.23/543,568.62
  6. Step 6: Final answer
    x = 216,311.34

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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.