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Finding the Fourth Proportional to 216,491.56, 324,654.30 and 74,310.35

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Solution

The fourth proportional to 216,491.56, 324,654.30 and 74,310.35 is: 111,437.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,491.56 : 324,654.30 = 74,310.35 : x
  2. Step 2: Convert to fraction form
    216,491.56/324,654.30 = 74,310.35/x
  3. Step 3: Cross multiply
    216,491.56x = 324,654.30 × 74,310.35
  4. Step 4: Simplify right side
    216,491.56x = 24,125,173,038.73
  5. Step 5: Solve for x
    x = 24,125,173,038.73/216,491.56
  6. Step 6: Final answer
    x = 111,437.02

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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.