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Finding the Fourth Proportional to 632,755.72, 949,122.60 and 159,430.60

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Solution

The fourth proportional to 632,755.72, 949,122.60 and 159,430.60 is: 239,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,755.72 : 949,122.60 = 159,430.60 : x
  2. Step 2: Convert to fraction form
    632,755.72/949,122.60 = 159,430.60/x
  3. Step 3: Cross multiply
    632,755.72x = 949,122.60 × 159,430.60
  4. Step 4: Simplify right side
    632,755.72x = 151,319,185,591.56
  5. Step 5: Solve for x
    x = 151,319,185,591.56/632,755.72
  6. Step 6: Final answer
    x = 239,143.13

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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.