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Finding the Fourth Proportional to 208,451.72, 313,096 and 124,375.96

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Solution

The fourth proportional to 208,451.72, 313,096 and 124,375.96 is: 186,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,451.72 : 313,096 = 124,375.96 : x
  2. Step 2: Convert to fraction form
    208,451.72/313,096 = 124,375.96/x
  3. Step 3: Cross multiply
    208,451.72x = 313,096 × 124,375.96
  4. Step 4: Simplify right side
    208,451.72x = 38,941,615,572.16
  5. Step 5: Solve for x
    x = 38,941,615,572.16/208,451.72
  6. Step 6: Final answer
    x = 186,813.60

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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.