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Finding the Fourth Proportional to 275,666.70, 413,500.05 and 117,911.10

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Solution

The fourth proportional to 275,666.70, 413,500.05 and 117,911.10 is: 176,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,666.70 : 413,500.05 = 117,911.10 : x
  2. Step 2: Convert to fraction form
    275,666.70/413,500.05 = 117,911.10/x
  3. Step 3: Cross multiply
    275,666.70x = 413,500.05 × 117,911.10
  4. Step 4: Simplify right side
    275,666.70x = 48,756,245,745.56
  5. Step 5: Solve for x
    x = 48,756,245,745.56/275,666.70
  6. Step 6: Final answer
    x = 176,866.65

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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.