Home / 217,706.30-326,562.90-82,772.42

Finding the Fourth Proportional to 217,706.30, 326,562.90 and 82,772.42

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Solution

The fourth proportional to 217,706.30, 326,562.90 and 82,772.42 is: 124,159.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,706.30 : 326,562.90 = 82,772.42 : x
  2. Step 2: Convert to fraction form
    217,706.30/326,562.90 = 82,772.42/x
  3. Step 3: Cross multiply
    217,706.30x = 326,562.90 × 82,772.42
  4. Step 4: Simplify right side
    217,706.30x = 27,030,401,101.36
  5. Step 5: Solve for x
    x = 27,030,401,101.36/217,706.30
  6. Step 6: Final answer
    x = 124,159.94

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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.