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Finding the Fourth Proportional to 327,595.48, 491,395.95 and 90,956.61

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Solution

The fourth proportional to 327,595.48, 491,395.95 and 90,956.61 is: 136,435.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,595.48 : 491,395.95 = 90,956.61 : x
  2. Step 2: Convert to fraction form
    327,595.48/491,395.95 = 90,956.61/x
  3. Step 3: Cross multiply
    327,595.48x = 491,395.95 × 90,956.61
  4. Step 4: Simplify right side
    327,595.48x = 44,695,709,779.73
  5. Step 5: Solve for x
    x = 44,695,709,779.73/327,595.48
  6. Step 6: Final answer
    x = 136,435.67

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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.