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Finding the Fourth Proportional to 326,091.60, 488,748.60 and 136,551.60

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Solution

The fourth proportional to 326,091.60, 488,748.60 and 136,551.60 is: 204,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,091.60 : 488,748.60 = 136,551.60 : x
  2. Step 2: Convert to fraction form
    326,091.60/488,748.60 = 136,551.60/x
  3. Step 3: Cross multiply
    326,091.60x = 488,748.60 × 136,551.60
  4. Step 4: Simplify right side
    326,091.60x = 66,739,403,327.76
  5. Step 5: Solve for x
    x = 66,739,403,327.76/326,091.60
  6. Step 6: Final answer
    x = 204,664.59

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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.