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Finding the Fourth Proportional to 172,292.86, 258,459.27 and 45,934.84

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Solution

The fourth proportional to 172,292.86, 258,459.27 and 45,934.84 is: 68,907.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,292.86 : 258,459.27 = 45,934.84 : x
  2. Step 2: Convert to fraction form
    172,292.86/258,459.27 = 45,934.84/x
  3. Step 3: Cross multiply
    172,292.86x = 258,459.27 × 45,934.84
  4. Step 4: Simplify right side
    172,292.86x = 11,872,285,213.97
  5. Step 5: Solve for x
    x = 11,872,285,213.97/172,292.86
  6. Step 6: Final answer
    x = 68,907.59

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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.