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Finding the Fourth Proportional to 336,712.40, 505,003.80 and 100,062.80

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Solution

The fourth proportional to 336,712.40, 505,003.80 and 100,062.80 is: 150,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,712.40 : 505,003.80 = 100,062.80 : x
  2. Step 2: Convert to fraction form
    336,712.40/505,003.80 = 100,062.80/x
  3. Step 3: Cross multiply
    336,712.40x = 505,003.80 × 100,062.80
  4. Step 4: Simplify right side
    336,712.40x = 50,532,094,238.64
  5. Step 5: Solve for x
    x = 50,532,094,238.64/336,712.40
  6. Step 6: Final answer
    x = 150,074.94

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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.