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Finding the Fourth Proportional to 133,809.45, 184,656.56 and 73,378.59

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Solution

The fourth proportional to 133,809.45, 184,656.56 and 73,378.59 is: 101,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,809.45 : 184,656.56 = 73,378.59 : x
  2. Step 2: Convert to fraction form
    133,809.45/184,656.56 = 73,378.59/x
  3. Step 3: Cross multiply
    133,809.45x = 184,656.56 × 73,378.59
  4. Step 4: Simplify right side
    133,809.45x = 13,549,837,640.16
  5. Step 5: Solve for x
    x = 13,549,837,640.16/133,809.45
  6. Step 6: Final answer
    x = 101,262.19

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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.