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Finding the Fourth Proportional to 338,717.76, 508,077.52 and 114,235.88

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Solution

The fourth proportional to 338,717.76, 508,077.52 and 114,235.88 is: 171,354.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,717.76 : 508,077.52 = 114,235.88 : x
  2. Step 2: Convert to fraction form
    338,717.76/508,077.52 = 114,235.88/x
  3. Step 3: Cross multiply
    338,717.76x = 508,077.52 × 114,235.88
  4. Step 4: Simplify right side
    338,717.76x = 58,040,682,605.42
  5. Step 5: Solve for x
    x = 58,040,682,605.42/338,717.76
  6. Step 6: Final answer
    x = 171,354.12

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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.