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Finding the Fourth Proportional to 347,652.78, 521,522.91 and 122,960.40

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Solution

The fourth proportional to 347,652.78, 521,522.91 and 122,960.40 is: 184,456.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,652.78 : 521,522.91 = 122,960.40 : x
  2. Step 2: Convert to fraction form
    347,652.78/521,522.91 = 122,960.40/x
  3. Step 3: Cross multiply
    347,652.78x = 521,522.91 × 122,960.40
  4. Step 4: Simplify right side
    347,652.78x = 64,126,665,622.76
  5. Step 5: Solve for x
    x = 64,126,665,622.76/347,652.78
  6. Step 6: Final answer
    x = 184,456.07

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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.