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Finding the Fourth Proportional to 275,581.40, 413,429.70 and 88,611.80

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Solution

The fourth proportional to 275,581.40, 413,429.70 and 88,611.80 is: 132,936.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,581.40 : 413,429.70 = 88,611.80 : x
  2. Step 2: Convert to fraction form
    275,581.40/413,429.70 = 88,611.80/x
  3. Step 3: Cross multiply
    275,581.40x = 413,429.70 × 88,611.80
  4. Step 4: Simplify right side
    275,581.40x = 36,634,749,890.46
  5. Step 5: Solve for x
    x = 36,634,749,890.46/275,581.40
  6. Step 6: Final answer
    x = 132,936.22

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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.