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Finding the Fourth Proportional to 362,603.76, 543,823.62 and 137,884.06

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Solution

The fourth proportional to 362,603.76, 543,823.62 and 137,884.06 is: 206,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,603.76 : 543,823.62 = 137,884.06 : x
  2. Step 2: Convert to fraction form
    362,603.76/543,823.62 = 137,884.06/x
  3. Step 3: Cross multiply
    362,603.76x = 543,823.62 × 137,884.06
  4. Step 4: Simplify right side
    362,603.76x = 74,984,608,649.50
  5. Step 5: Solve for x
    x = 74,984,608,649.50/362,603.76
  6. Step 6: Final answer
    x = 206,794.90

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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.