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Finding the Fourth Proportional to 338,134.32, 507,235.34 and 124,958.20

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Solution

The fourth proportional to 338,134.32, 507,235.34 and 124,958.20 is: 187,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,134.32 : 507,235.34 = 124,958.20 : x
  2. Step 2: Convert to fraction form
    338,134.32/507,235.34 = 124,958.20/x
  3. Step 3: Cross multiply
    338,134.32x = 507,235.34 × 124,958.20
  4. Step 4: Simplify right side
    338,134.32x = 63,383,215,062.79
  5. Step 5: Solve for x
    x = 63,383,215,062.79/338,134.32
  6. Step 6: Final answer
    x = 187,449.81

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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.