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Finding the Fourth Proportional to 88,902.80, 133,440.60 and 53,910.80

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Solution

The fourth proportional to 88,902.80, 133,440.60 and 53,910.80 is: 80,918.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,902.80 : 133,440.60 = 53,910.80 : x
  2. Step 2: Convert to fraction form
    88,902.80/133,440.60 = 53,910.80/x
  3. Step 3: Cross multiply
    88,902.80x = 133,440.60 × 53,910.80
  4. Step 4: Simplify right side
    88,902.80x = 7,193,889,498.48
  5. Step 5: Solve for x
    x = 7,193,889,498.48/88,902.80
  6. Step 6: Final answer
    x = 80,918.59

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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.