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Finding the Fourth Proportional to 75,588.92, 113,378.78 and 28,194.88

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Solution

The fourth proportional to 75,588.92, 113,378.78 and 28,194.88 is: 42,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,588.92 : 113,378.78 = 28,194.88 : x
  2. Step 2: Convert to fraction form
    75,588.92/113,378.78 = 28,194.88/x
  3. Step 3: Cross multiply
    75,588.92x = 113,378.78 × 28,194.88
  4. Step 4: Simplify right side
    75,588.92x = 3,196,701,096.65
  5. Step 5: Solve for x
    x = 3,196,701,096.65/75,588.92
  6. Step 6: Final answer
    x = 42,290.60

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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.