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Finding the Fourth Proportional to 133,021.90, 199,532.85 and 63,037.90

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Solution

The fourth proportional to 133,021.90, 199,532.85 and 63,037.90 is: 94,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,021.90 : 199,532.85 = 63,037.90 : x
  2. Step 2: Convert to fraction form
    133,021.90/199,532.85 = 63,037.90/x
  3. Step 3: Cross multiply
    133,021.90x = 199,532.85 × 63,037.90
  4. Step 4: Simplify right side
    133,021.90x = 12,578,131,845.02
  5. Step 5: Solve for x
    x = 12,578,131,845.02/133,021.90
  6. Step 6: Final answer
    x = 94,556.85

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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.