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Finding the Fourth Proportional to 73,609.43, 101,581.49 and 41,778.86

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Solution

The fourth proportional to 73,609.43, 101,581.49 and 41,778.86 is: 57,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,609.43 : 101,581.49 = 41,778.86 : x
  2. Step 2: Convert to fraction form
    73,609.43/101,581.49 = 41,778.86/x
  3. Step 3: Cross multiply
    73,609.43x = 101,581.49 × 41,778.86
  4. Step 4: Simplify right side
    73,609.43x = 4,243,958,445.84
  5. Step 5: Solve for x
    x = 4,243,958,445.84/73,609.43
  6. Step 6: Final answer
    x = 57,655.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.