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Finding the Fourth Proportional to 133,815.94, 184,665.99 and 74,199.94

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Solution

The fourth proportional to 133,815.94, 184,665.99 and 74,199.94 is: 102,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,815.94 : 184,665.99 = 74,199.94 : x
  2. Step 2: Convert to fraction form
    133,815.94/184,665.99 = 74,199.94/x
  3. Step 3: Cross multiply
    133,815.94x = 184,665.99 × 74,199.94
  4. Step 4: Simplify right side
    133,815.94x = 13,702,205,194.63
  5. Step 5: Solve for x
    x = 13,702,205,194.63/133,815.94
  6. Step 6: Final answer
    x = 102,395.91

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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.