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Finding the Fourth Proportional to 133,641.81, 184,425.68 and 79,926.82

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Solution

The fourth proportional to 133,641.81, 184,425.68 and 79,926.82 is: 110,299.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,641.81 : 184,425.68 = 79,926.82 : x
  2. Step 2: Convert to fraction form
    133,641.81/184,425.68 = 79,926.82/x
  3. Step 3: Cross multiply
    133,641.81x = 184,425.68 × 79,926.82
  4. Step 4: Simplify right side
    133,641.81x = 14,740,557,867.49
  5. Step 5: Solve for x
    x = 14,740,557,867.49/133,641.81
  6. Step 6: Final answer
    x = 110,299.00

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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.