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Finding the Fourth Proportional to 355,523.06, 533,205.60 and 102,748.38

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Solution

The fourth proportional to 355,523.06, 533,205.60 and 102,748.38 is: 154,099.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,523.06 : 533,205.60 = 102,748.38 : x
  2. Step 2: Convert to fraction form
    355,523.06/533,205.60 = 102,748.38/x
  3. Step 3: Cross multiply
    355,523.06x = 533,205.60 × 102,748.38
  4. Step 4: Simplify right side
    355,523.06x = 54,786,011,606.93
  5. Step 5: Solve for x
    x = 54,786,011,606.93/355,523.06
  6. Step 6: Final answer
    x = 154,099.74

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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.