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Finding the Fourth Proportional to 172,556.58, 238,127.59 and 97,105.08

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Solution

The fourth proportional to 172,556.58, 238,127.59 and 97,105.08 is: 134,004.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,556.58 : 238,127.59 = 97,105.08 : x
  2. Step 2: Convert to fraction form
    172,556.58/238,127.59 = 97,105.08/x
  3. Step 3: Cross multiply
    172,556.58x = 238,127.59 × 97,105.08
  4. Step 4: Simplify right side
    172,556.58x = 23,123,397,000.99
  5. Step 5: Solve for x
    x = 23,123,397,000.99/172,556.58
  6. Step 6: Final answer
    x = 134,004.73

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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.