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Finding the Fourth Proportional to 260,835.95, 391,181.65 and 92,334.08

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Solution

The fourth proportional to 260,835.95, 391,181.65 and 92,334.08 is: 138,475.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,835.95 : 391,181.65 = 92,334.08 : x
  2. Step 2: Convert to fraction form
    260,835.95/391,181.65 = 92,334.08/x
  3. Step 3: Cross multiply
    260,835.95x = 391,181.65 × 92,334.08
  4. Step 4: Simplify right side
    260,835.95x = 36,119,396,831.73
  5. Step 5: Solve for x
    x = 36,119,396,831.73/260,835.95
  6. Step 6: Final answer
    x = 138,475.53

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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.