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Finding the Fourth Proportional to 362,407.10, 543,351.45 and 162,563.90

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Solution

The fourth proportional to 362,407.10, 543,351.45 and 162,563.90 is: 243,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,407.10 : 543,351.45 = 162,563.90 : x
  2. Step 2: Convert to fraction form
    362,407.10/543,351.45 = 162,563.90/x
  3. Step 3: Cross multiply
    362,407.10x = 543,351.45 × 162,563.90
  4. Step 4: Simplify right side
    362,407.10x = 88,329,330,782.66
  5. Step 5: Solve for x
    x = 88,329,330,782.66/362,407.10
  6. Step 6: Final answer
    x = 243,729.58

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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.