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Finding the Fourth Proportional to 231,103.60, 346,266.60 and 217,106.80

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Solution

The fourth proportional to 231,103.60, 346,266.60 and 217,106.80 is: 325,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,103.60 : 346,266.60 = 217,106.80 : x
  2. Step 2: Convert to fraction form
    231,103.60/346,266.60 = 217,106.80/x
  3. Step 3: Cross multiply
    231,103.60x = 346,266.60 × 217,106.80
  4. Step 4: Simplify right side
    231,103.60x = 75,176,833,472.88
  5. Step 5: Solve for x
    x = 75,176,833,472.88/231,103.60
  6. Step 6: Final answer
    x = 325,294.95

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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.