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Finding the Fourth Proportional to 192,555.89, 288,658.86 and 87,317.45

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Solution

The fourth proportional to 192,555.89, 288,658.86 and 87,317.45 is: 130,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,555.89 : 288,658.86 = 87,317.45 : x
  2. Step 2: Convert to fraction form
    192,555.89/288,658.86 = 87,317.45/x
  3. Step 3: Cross multiply
    192,555.89x = 288,658.86 × 87,317.45
  4. Step 4: Simplify right side
    192,555.89x = 25,204,955,575.11
  5. Step 5: Solve for x
    x = 25,204,955,575.11/192,555.89
  6. Step 6: Final answer
    x = 130,896.83

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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.