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Finding the Fourth Proportional to 194,486.60, 291,751.79 and 61,327.46

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Solution

The fourth proportional to 194,486.60, 291,751.79 and 61,327.46 is: 91,998.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,486.60 : 291,751.79 = 61,327.46 : x
  2. Step 2: Convert to fraction form
    194,486.60/291,751.79 = 61,327.46/x
  3. Step 3: Cross multiply
    194,486.60x = 291,751.79 × 61,327.46
  4. Step 4: Simplify right side
    194,486.60x = 17,892,394,465.76
  5. Step 5: Solve for x
    x = 17,892,394,465.76/194,486.60
  6. Step 6: Final answer
    x = 91,998.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.