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Finding the Fourth Proportional to 87,516.99, 120,775.89 and 53,524.89

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Solution

The fourth proportional to 87,516.99, 120,775.89 and 53,524.89 is: 73,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,516.99 : 120,775.89 = 53,524.89 : x
  2. Step 2: Convert to fraction form
    87,516.99/120,775.89 = 53,524.89/x
  3. Step 3: Cross multiply
    87,516.99x = 120,775.89 × 53,524.89
  4. Step 4: Simplify right side
    87,516.99x = 6,464,516,226.90
  5. Step 5: Solve for x
    x = 6,464,516,226.90/87,516.99
  6. Step 6: Final answer
    x = 73,865.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.