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Finding the Fourth Proportional to 331,745.19, 497,650.14 and 132,018.94

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Solution

The fourth proportional to 331,745.19, 497,650.14 and 132,018.94 is: 198,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,745.19 : 497,650.14 = 132,018.94 : x
  2. Step 2: Convert to fraction form
    331,745.19/497,650.14 = 132,018.94/x
  3. Step 3: Cross multiply
    331,745.19x = 497,650.14 × 132,018.94
  4. Step 4: Simplify right side
    331,745.19x = 65,699,243,973.65
  5. Step 5: Solve for x
    x = 65,699,243,973.65/331,745.19
  6. Step 6: Final answer
    x = 198,041.29

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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.