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Finding the Fourth Proportional to 75,903.20, 113,854.80 and 36,450.80

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Solution

The fourth proportional to 75,903.20, 113,854.80 and 36,450.80 is: 54,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,903.20 : 113,854.80 = 36,450.80 : x
  2. Step 2: Convert to fraction form
    75,903.20/113,854.80 = 36,450.80/x
  3. Step 3: Cross multiply
    75,903.20x = 113,854.80 × 36,450.80
  4. Step 4: Simplify right side
    75,903.20x = 4,150,098,543.84
  5. Step 5: Solve for x
    x = 4,150,098,543.84/75,903.20
  6. Step 6: Final answer
    x = 54,676.20

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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.