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Finding the Fourth Proportional to 133,643.20, 184,425.60 and 73,213.60

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Solution

The fourth proportional to 133,643.20, 184,425.60 and 73,213.60 is: 101,033.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,643.20 : 184,425.60 = 73,213.60 : x
  2. Step 2: Convert to fraction form
    133,643.20/184,425.60 = 73,213.60/x
  3. Step 3: Cross multiply
    133,643.20x = 184,425.60 × 73,213.60
  4. Step 4: Simplify right side
    133,643.20x = 13,502,462,108.16
  5. Step 5: Solve for x
    x = 13,502,462,108.16/133,643.20
  6. Step 6: Final answer
    x = 101,033.66

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