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Finding the Fourth Proportional to 172,559.60, 258,876.20 and 97,714.80

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Solution

The fourth proportional to 172,559.60, 258,876.20 and 97,714.80 is: 146,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,559.60 : 258,876.20 = 97,714.80 : x
  2. Step 2: Convert to fraction form
    172,559.60/258,876.20 = 97,714.80/x
  3. Step 3: Cross multiply
    172,559.60x = 258,876.20 × 97,714.80
  4. Step 4: Simplify right side
    172,559.60x = 25,296,036,107.76
  5. Step 5: Solve for x
    x = 25,296,036,107.76/172,559.60
  6. Step 6: Final answer
    x = 146,593.04

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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.