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Finding the Fourth Proportional to 205,575.62, 308,392.43 and 63,432.47

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Solution

The fourth proportional to 205,575.62, 308,392.43 and 63,432.47 is: 95,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,575.62 : 308,392.43 = 63,432.47 : x
  2. Step 2: Convert to fraction form
    205,575.62/308,392.43 = 63,432.47/x
  3. Step 3: Cross multiply
    205,575.62x = 308,392.43 × 63,432.47
  4. Step 4: Simplify right side
    205,575.62x = 19,562,092,640.12
  5. Step 5: Solve for x
    x = 19,562,092,640.12/205,575.62
  6. Step 6: Final answer
    x = 95,157.65

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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.