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Finding the Fourth Proportional to 88,898.80, 133,434.60 and 53,906.80

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Solution

The fourth proportional to 88,898.80, 133,434.60 and 53,906.80 is: 80,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,898.80 : 133,434.60 = 53,906.80 : x
  2. Step 2: Convert to fraction form
    88,898.80/133,434.60 = 53,906.80/x
  3. Step 3: Cross multiply
    88,898.80x = 133,434.60 × 53,906.80
  4. Step 4: Simplify right side
    88,898.80x = 7,193,032,295.28
  5. Step 5: Solve for x
    x = 7,193,032,295.28/88,898.80
  6. Step 6: Final answer
    x = 80,912.59

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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.