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Finding the Fourth Proportional to 133,909.56, 184,788.96 and 73,478.70

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Solution

The fourth proportional to 133,909.56, 184,788.96 and 73,478.70 is: 101,397.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,909.56 : 184,788.96 = 73,478.70 : x
  2. Step 2: Convert to fraction form
    133,909.56/184,788.96 = 73,478.70/x
  3. Step 3: Cross multiply
    133,909.56x = 184,788.96 × 73,478.70
  4. Step 4: Simplify right side
    133,909.56x = 13,578,052,555.15
  5. Step 5: Solve for x
    x = 13,578,052,555.15/133,909.56
  6. Step 6: Final answer
    x = 101,397.19

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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.