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Finding the Fourth Proportional to 230,974.60, 346,461.90 and 218,072.20

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Solution

The fourth proportional to 230,974.60, 346,461.90 and 218,072.20 is: 327,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,974.60 : 346,461.90 = 218,072.20 : x
  2. Step 2: Convert to fraction form
    230,974.60/346,461.90 = 218,072.20/x
  3. Step 3: Cross multiply
    230,974.60x = 346,461.90 × 218,072.20
  4. Step 4: Simplify right side
    230,974.60x = 75,553,708,749.18
  5. Step 5: Solve for x
    x = 75,553,708,749.18/230,974.60
  6. Step 6: Final answer
    x = 327,108.30

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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.