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Finding the Fourth Proportional to 355,571.72, 533,277.54 and 102,795.86

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Solution

The fourth proportional to 355,571.72, 533,277.54 and 102,795.86 is: 154,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,571.72 : 533,277.54 = 102,795.86 : x
  2. Step 2: Convert to fraction form
    355,571.72/533,277.54 = 102,795.86/x
  3. Step 3: Cross multiply
    355,571.72x = 533,277.54 × 102,795.86
  4. Step 4: Simplify right side
    355,571.72x = 54,818,723,342.98
  5. Step 5: Solve for x
    x = 54,818,723,342.98/355,571.72
  6. Step 6: Final answer
    x = 154,170.65

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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.