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Finding the Fourth Proportional to 171,763.23, 257,520.29 and 115,463.69

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Solution

The fourth proportional to 171,763.23, 257,520.29 and 115,463.69 is: 173,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,763.23 : 257,520.29 = 115,463.69 : x
  2. Step 2: Convert to fraction form
    171,763.23/257,520.29 = 115,463.69/x
  3. Step 3: Cross multiply
    171,763.23x = 257,520.29 × 115,463.69
  4. Step 4: Simplify right side
    171,763.23x = 29,734,241,068.35
  5. Step 5: Solve for x
    x = 29,734,241,068.35/171,763.23
  6. Step 6: Final answer
    x = 173,111.80

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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.