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Finding the Fourth Proportional to 133,361.76, 184,039.25 and 72,932.52

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Solution

The fourth proportional to 133,361.76, 184,039.25 and 72,932.52 is: 100,646.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,361.76 : 184,039.25 = 72,932.52 : x
  2. Step 2: Convert to fraction form
    133,361.76/184,039.25 = 72,932.52/x
  3. Step 3: Cross multiply
    133,361.76x = 184,039.25 × 72,932.52
  4. Step 4: Simplify right side
    133,361.76x = 13,422,446,281.41
  5. Step 5: Solve for x
    x = 13,422,446,281.41/133,361.76
  6. Step 6: Final answer
    x = 100,646.89

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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.