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Finding the Fourth Proportional to 339,572.16, 468,612.36 and 212,321.52

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Solution

The fourth proportional to 339,572.16, 468,612.36 and 212,321.52 is: 293,005.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,572.16 : 468,612.36 = 212,321.52 : x
  2. Step 2: Convert to fraction form
    339,572.16/468,612.36 = 212,321.52/x
  3. Step 3: Cross multiply
    339,572.16x = 468,612.36 × 212,321.52
  4. Step 4: Simplify right side
    339,572.16x = 99,496,488,565.99
  5. Step 5: Solve for x
    x = 99,496,488,565.99/339,572.16
  6. Step 6: Final answer
    x = 293,005.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.