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Finding the Fourth Proportional to 218,043.12, 327,064.56 and 58,119.12

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Solution

The fourth proportional to 218,043.12, 327,064.56 and 58,119.12 is: 87,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,043.12 : 327,064.56 = 58,119.12 : x
  2. Step 2: Convert to fraction form
    218,043.12/327,064.56 = 58,119.12/x
  3. Step 3: Cross multiply
    218,043.12x = 327,064.56 × 58,119.12
  4. Step 4: Simplify right side
    218,043.12x = 19,008,704,410.39
  5. Step 5: Solve for x
    x = 19,008,704,410.39/218,043.12
  6. Step 6: Final answer
    x = 87,178.65

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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.