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Finding the Fourth Proportional to 218,449.63, 327,753.35 and 76,315.89

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Solution

The fourth proportional to 218,449.63, 327,753.35 and 76,315.89 is: 114,501.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,449.63 : 327,753.35 = 76,315.89 : x
  2. Step 2: Convert to fraction form
    218,449.63/327,753.35 = 76,315.89/x
  3. Step 3: Cross multiply
    218,449.63x = 327,753.35 × 76,315.89
  4. Step 4: Simplify right side
    218,449.63x = 25,012,789,453.23
  5. Step 5: Solve for x
    x = 25,012,789,453.23/218,449.63
  6. Step 6: Final answer
    x = 114,501.40

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1.5x scale

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.