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Finding the Fourth Proportional to 178,886.48, 268,327.82 and 45,765.68

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Solution

The fourth proportional to 178,886.48, 268,327.82 and 45,765.68 is: 68,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,886.48 : 268,327.82 = 45,765.68 : x
  2. Step 2: Convert to fraction form
    178,886.48/268,327.82 = 45,765.68/x
  3. Step 3: Cross multiply
    178,886.48x = 268,327.82 × 45,765.68
  4. Step 4: Simplify right side
    178,886.48x = 12,280,203,917.99
  5. Step 5: Solve for x
    x = 12,280,203,917.99/178,886.48
  6. Step 6: Final answer
    x = 68,648.03

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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.