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Finding the Fourth Proportional to 362,649.15, 543,973.86 and 137,957.67

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Solution

The fourth proportional to 362,649.15, 543,973.86 and 137,957.67 is: 206,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,649.15 : 543,973.86 = 137,957.67 : x
  2. Step 2: Convert to fraction form
    362,649.15/543,973.86 = 137,957.67/x
  3. Step 3: Cross multiply
    362,649.15x = 543,973.86 × 137,957.67
  4. Step 4: Simplify right side
    362,649.15x = 75,045,366,266.51
  5. Step 5: Solve for x
    x = 75,045,366,266.51/362,649.15
  6. Step 6: Final answer
    x = 206,936.56

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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.