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Finding the Fourth Proportional to 75,834.60, 113,751.90 and 74,850.45

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Solution

The fourth proportional to 75,834.60, 113,751.90 and 74,850.45 is: 112,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,834.60 : 113,751.90 = 74,850.45 : x
  2. Step 2: Convert to fraction form
    75,834.60/113,751.90 = 74,850.45/x
  3. Step 3: Cross multiply
    75,834.60x = 113,751.90 × 74,850.45
  4. Step 4: Simplify right side
    75,834.60x = 8,514,380,903.36
  5. Step 5: Solve for x
    x = 8,514,380,903.36/75,834.60
  6. Step 6: Final answer
    x = 112,275.68

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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.