Home / 217,676.50-326,608.30-112,569.28

Finding the Fourth Proportional to 217,676.50, 326,608.30 and 112,569.28

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Solution

The fourth proportional to 217,676.50, 326,608.30 and 112,569.28 is: 168,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,676.50 : 326,608.30 = 112,569.28 : x
  2. Step 2: Convert to fraction form
    217,676.50/326,608.30 = 112,569.28/x
  3. Step 3: Cross multiply
    217,676.50x = 326,608.30 × 112,569.28
  4. Step 4: Simplify right side
    217,676.50x = 36,766,060,497.21
  5. Step 5: Solve for x
    x = 36,766,060,497.21/217,676.50
  6. Step 6: Final answer
    x = 168,902.30

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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.