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Finding the Fourth Proportional to 171,397.54, 257,108.31 and 53,053.30

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Solution

The fourth proportional to 171,397.54, 257,108.31 and 53,053.30 is: 79,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,397.54 : 257,108.31 = 53,053.30 : x
  2. Step 2: Convert to fraction form
    171,397.54/257,108.31 = 53,053.30/x
  3. Step 3: Cross multiply
    171,397.54x = 257,108.31 × 53,053.30
  4. Step 4: Simplify right side
    171,397.54x = 13,640,444,302.92
  5. Step 5: Solve for x
    x = 13,640,444,302.92/171,397.54
  6. Step 6: Final answer
    x = 79,583.66

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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.