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Finding the Fourth Proportional to 133,920.72, 184,813.38 and 73,487.84

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Solution

The fourth proportional to 133,920.72, 184,813.38 and 73,487.84 is: 101,414.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,920.72 : 184,813.38 = 73,487.84 : x
  2. Step 2: Convert to fraction form
    133,920.72/184,813.38 = 73,487.84/x
  3. Step 3: Cross multiply
    133,920.72x = 184,813.38 × 73,487.84
  4. Step 4: Simplify right side
    133,920.72x = 13,581,535,175.23
  5. Step 5: Solve for x
    x = 13,581,535,175.23/133,920.72
  6. Step 6: Final answer
    x = 101,414.74

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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.