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Finding the Fourth Proportional to 355,453.88, 533,200.25 and 106,155.32

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Solution

The fourth proportional to 355,453.88, 533,200.25 and 106,155.32 is: 159,238.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,453.88 : 533,200.25 = 106,155.32 : x
  2. Step 2: Convert to fraction form
    355,453.88/533,200.25 = 106,155.32/x
  3. Step 3: Cross multiply
    355,453.88x = 533,200.25 × 106,155.32
  4. Step 4: Simplify right side
    355,453.88x = 56,602,040,762.22
  5. Step 5: Solve for x
    x = 56,602,040,762.22/355,453.88
  6. Step 6: Final answer
    x = 159,238.78

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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.