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Finding the Fourth Proportional to 356,738.43, 535,162.94 and 120,062.64

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Solution

The fourth proportional to 356,738.43, 535,162.94 and 120,062.64 is: 180,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,738.43 : 535,162.94 = 120,062.64 : x
  2. Step 2: Convert to fraction form
    356,738.43/535,162.94 = 120,062.64/x
  3. Step 3: Cross multiply
    356,738.43x = 535,162.94 × 120,062.64
  4. Step 4: Simplify right side
    356,738.43x = 64,253,074,806.25
  5. Step 5: Solve for x
    x = 64,253,074,806.25/356,738.43
  6. Step 6: Final answer
    x = 180,112.57

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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.