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Finding the Fourth Proportional to 259,116.81, 357,390.84 and 171,743.90

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Solution

The fourth proportional to 259,116.81, 357,390.84 and 171,743.90 is: 236,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,116.81 : 357,390.84 = 171,743.90 : x
  2. Step 2: Convert to fraction form
    259,116.81/357,390.84 = 171,743.90/x
  3. Step 3: Cross multiply
    259,116.81x = 357,390.84 × 171,743.90
  4. Step 4: Simplify right side
    259,116.81x = 61,379,694,898.92
  5. Step 5: Solve for x
    x = 61,379,694,898.92/259,116.81
  6. Step 6: Final answer
    x = 236,880.41

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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.