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Finding the Fourth Proportional to 193,117.80, 289,676.70 and 52,890.60

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Solution

The fourth proportional to 193,117.80, 289,676.70 and 52,890.60 is: 79,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,117.80 : 289,676.70 = 52,890.60 : x
  2. Step 2: Convert to fraction form
    193,117.80/289,676.70 = 52,890.60/x
  3. Step 3: Cross multiply
    193,117.80x = 289,676.70 × 52,890.60
  4. Step 4: Simplify right side
    193,117.80x = 15,321,174,469.02
  5. Step 5: Solve for x
    x = 15,321,174,469.02/193,117.80
  6. Step 6: Final answer
    x = 79,335.90

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1.5x scale

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.