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Finding the Fourth Proportional to 347,661.96, 479,773.70 and 188,685.96

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Solution

The fourth proportional to 347,661.96, 479,773.70 and 188,685.96 is: 260,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,661.96 : 479,773.70 = 188,685.96 : x
  2. Step 2: Convert to fraction form
    347,661.96/479,773.70 = 188,685.96/x
  3. Step 3: Cross multiply
    347,661.96x = 479,773.70 × 188,685.96
  4. Step 4: Simplify right side
    347,661.96x = 90,526,561,167.25
  5. Step 5: Solve for x
    x = 90,526,561,167.25/347,661.96
  6. Step 6: Final answer
    x = 260,386.73

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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.