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Finding the Fourth Proportional to 362,604.79, 543,907.18 and 137,913.32

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Solution

The fourth proportional to 362,604.79, 543,907.18 and 137,913.32 is: 206,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,604.79 : 543,907.18 = 137,913.32 : x
  2. Step 2: Convert to fraction form
    362,604.79/543,907.18 = 137,913.32/x
  3. Step 3: Cross multiply
    362,604.79x = 543,907.18 × 137,913.32
  4. Step 4: Simplify right side
    362,604.79x = 75,012,044,965.64
  5. Step 5: Solve for x
    x = 75,012,044,965.64/362,604.79
  6. Step 6: Final answer
    x = 206,869.98

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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.