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Finding the Fourth Proportional to 298,503.80, 447,837.46 and 88,141.56

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Solution

The fourth proportional to 298,503.80, 447,837.46 and 88,141.56 is: 132,236.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,503.80 : 447,837.46 = 88,141.56 : x
  2. Step 2: Convert to fraction form
    298,503.80/447,837.46 = 88,141.56/x
  3. Step 3: Cross multiply
    298,503.80x = 447,837.46 × 88,141.56
  4. Step 4: Simplify right side
    298,503.80x = 39,473,092,350.84
  5. Step 5: Solve for x
    x = 39,473,092,350.84/298,503.80
  6. Step 6: Final answer
    x = 132,236.48

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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.