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Finding the Fourth Proportional to 217,732.85, 326,567.59 and 67,938.29

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Solution

The fourth proportional to 217,732.85, 326,567.59 and 67,938.29 is: 101,897.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,732.85 : 326,567.59 = 67,938.29 : x
  2. Step 2: Convert to fraction form
    217,732.85/326,567.59 = 67,938.29/x
  3. Step 3: Cross multiply
    217,732.85x = 326,567.59 × 67,938.29
  4. Step 4: Simplify right side
    217,732.85x = 22,186,443,438.12
  5. Step 5: Solve for x
    x = 22,186,443,438.12/217,732.85
  6. Step 6: Final answer
    x = 101,897.55

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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.