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Finding the Fourth Proportional to 298,418.50, 447,709.76 and 88,056.44

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Solution

The fourth proportional to 298,418.50, 447,709.76 and 88,056.44 is: 132,108.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,418.50 : 447,709.76 = 88,056.44 : x
  2. Step 2: Convert to fraction form
    298,418.50/447,709.76 = 88,056.44/x
  3. Step 3: Cross multiply
    298,418.50x = 447,709.76 × 88,056.44
  4. Step 4: Simplify right side
    298,418.50x = 39,423,727,618.85
  5. Step 5: Solve for x
    x = 39,423,727,618.85/298,418.50
  6. Step 6: Final answer
    x = 132,108.86

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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.