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Finding the Fourth Proportional to 395,060.44, 592,652.22 and 128,759.17

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Solution

The fourth proportional to 395,060.44, 592,652.22 and 128,759.17 is: 193,158.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,060.44 : 592,652.22 = 128,759.17 : x
  2. Step 2: Convert to fraction form
    395,060.44/592,652.22 = 128,759.17/x
  3. Step 3: Cross multiply
    395,060.44x = 592,652.22 × 128,759.17
  4. Step 4: Simplify right side
    395,060.44x = 76,309,407,945.86
  5. Step 5: Solve for x
    x = 76,309,407,945.86/395,060.44
  6. Step 6: Final answer
    x = 193,158.82

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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.