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Finding the Fourth Proportional to 355,696.20, 533,361.90 and 106,345.80

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Solution

The fourth proportional to 355,696.20, 533,361.90 and 106,345.80 is: 159,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,696.20 : 533,361.90 = 106,345.80 : x
  2. Step 2: Convert to fraction form
    355,696.20/533,361.90 = 106,345.80/x
  3. Step 3: Cross multiply
    355,696.20x = 533,361.90 × 106,345.80
  4. Step 4: Simplify right side
    355,696.20x = 56,720,797,945.02
  5. Step 5: Solve for x
    x = 56,720,797,945.02/355,696.20
  6. Step 6: Final answer
    x = 159,464.17

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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.