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Finding the Fourth Proportional to 347,217.96, 520,868.61 and 122,532

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Solution

The fourth proportional to 347,217.96, 520,868.61 and 122,532 is: 183,812.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,217.96 : 520,868.61 = 122,532 : x
  2. Step 2: Convert to fraction form
    347,217.96/520,868.61 = 122,532/x
  3. Step 3: Cross multiply
    347,217.96x = 520,868.61 × 122,532
  4. Step 4: Simplify right side
    347,217.96x = 63,823,072,520.52
  5. Step 5: Solve for x
    x = 63,823,072,520.52/347,217.96
  6. Step 6: Final answer
    x = 183,812.71

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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.