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Finding the Fourth Proportional to 291,958.03, 402,915.89 and 164,630.89

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Solution

The fourth proportional to 291,958.03, 402,915.89 and 164,630.89 is: 227,198.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,958.03 : 402,915.89 = 164,630.89 : x
  2. Step 2: Convert to fraction form
    291,958.03/402,915.89 = 164,630.89/x
  3. Step 3: Cross multiply
    291,958.03x = 402,915.89 × 164,630.89
  4. Step 4: Simplify right side
    291,958.03x = 66,332,401,565.84
  5. Step 5: Solve for x
    x = 66,332,401,565.84/291,958.03
  6. Step 6: Final answer
    x = 227,198.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.