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Finding the Fourth Proportional to 73,155.42, 109,731.53 and 33,712.57

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Solution

The fourth proportional to 73,155.42, 109,731.53 and 33,712.57 is: 50,568.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,155.42 : 109,731.53 = 33,712.57 : x
  2. Step 2: Convert to fraction form
    73,155.42/109,731.53 = 33,712.57/x
  3. Step 3: Cross multiply
    73,155.42x = 109,731.53 × 33,712.57
  4. Step 4: Simplify right side
    73,155.42x = 3,699,332,107.78
  5. Step 5: Solve for x
    x = 3,699,332,107.78/73,155.42
  6. Step 6: Final answer
    x = 50,568.12

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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.