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Finding the Fourth Proportional to 171,957.23, 257,897.23 and 72,230.03

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Solution

The fourth proportional to 171,957.23, 257,897.23 and 72,230.03 is: 108,328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,957.23 : 257,897.23 = 72,230.03 : x
  2. Step 2: Convert to fraction form
    171,957.23/257,897.23 = 72,230.03/x
  3. Step 3: Cross multiply
    171,957.23x = 257,897.23 × 72,230.03
  4. Step 4: Simplify right side
    171,957.23x = 18,627,924,659.82
  5. Step 5: Solve for x
    x = 18,627,924,659.82/171,957.23
  6. Step 6: Final answer
    x = 108,328.82

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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.