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Finding the Fourth Proportional to 217,652.66, 326,442.03 and 99,296.18

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Solution

The fourth proportional to 217,652.66, 326,442.03 and 99,296.18 is: 148,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,652.66 : 326,442.03 = 99,296.18 : x
  2. Step 2: Convert to fraction form
    217,652.66/326,442.03 = 99,296.18/x
  3. Step 3: Cross multiply
    217,652.66x = 326,442.03 × 99,296.18
  4. Step 4: Simplify right side
    217,652.66x = 32,414,446,570.45
  5. Step 5: Solve for x
    x = 32,414,446,570.45/217,652.66
  6. Step 6: Final answer
    x = 148,927.41

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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.