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Finding the Fourth Proportional to 355,743.50, 533,575.74 and 89,503.88

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Solution

The fourth proportional to 355,743.50, 533,575.74 and 89,503.88 is: 134,245.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,743.50 : 533,575.74 = 89,503.88 : x
  2. Step 2: Convert to fraction form
    355,743.50/533,575.74 = 89,503.88/x
  3. Step 3: Cross multiply
    355,743.50x = 533,575.74 × 89,503.88
  4. Step 4: Simplify right side
    355,743.50x = 47,757,099,003.87
  5. Step 5: Solve for x
    x = 47,757,099,003.87/355,743.50
  6. Step 6: Final answer
    x = 134,245.88

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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.