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Finding the Fourth Proportional to 347,755.52, 521,320.32 and 125,984

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Solution

The fourth proportional to 347,755.52, 521,320.32 and 125,984 is: 188,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,755.52 : 521,320.32 = 125,984 : x
  2. Step 2: Convert to fraction form
    347,755.52/521,320.32 = 125,984/x
  3. Step 3: Cross multiply
    347,755.52x = 521,320.32 × 125,984
  4. Step 4: Simplify right side
    347,755.52x = 65,678,019,194.88
  5. Step 5: Solve for x
    x = 65,678,019,194.88/347,755.52
  6. Step 6: Final answer
    x = 188,862.62

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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.