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Finding the Fourth Proportional to 133,752.64, 184,580.74 and 80,039.92

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Solution

The fourth proportional to 133,752.64, 184,580.74 and 80,039.92 is: 110,456.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,752.64 : 184,580.74 = 80,039.92 : x
  2. Step 2: Convert to fraction form
    133,752.64/184,580.74 = 80,039.92/x
  3. Step 3: Cross multiply
    133,752.64x = 184,580.74 × 80,039.92
  4. Step 4: Simplify right side
    133,752.64x = 14,773,827,663.14
  5. Step 5: Solve for x
    x = 14,773,827,663.14/133,752.64
  6. Step 6: Final answer
    x = 110,456.34

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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.