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Finding the Fourth Proportional to 216,495.82, 324,660.68 and 74,314.60

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Solution

The fourth proportional to 216,495.82, 324,660.68 and 74,314.60 is: 111,443.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,495.82 : 324,660.68 = 74,314.60 : x
  2. Step 2: Convert to fraction form
    216,495.82/324,660.68 = 74,314.60/x
  3. Step 3: Cross multiply
    216,495.82x = 324,660.68 × 74,314.60
  4. Step 4: Simplify right side
    216,495.82x = 24,127,026,575.05
  5. Step 5: Solve for x
    x = 24,127,026,575.05/216,495.82
  6. Step 6: Final answer
    x = 111,443.39

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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.