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Finding the Fourth Proportional to 172,900.83, 238,662.68 and 101,304.03

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Solution

The fourth proportional to 172,900.83, 238,662.68 and 101,304.03 is: 139,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,900.83 : 238,662.68 = 101,304.03 : x
  2. Step 2: Convert to fraction form
    172,900.83/238,662.68 = 101,304.03/x
  3. Step 3: Cross multiply
    172,900.83x = 238,662.68 × 101,304.03
  4. Step 4: Simplify right side
    172,900.83x = 24,177,490,788.08
  5. Step 5: Solve for x
    x = 24,177,490,788.08/172,900.83
  6. Step 6: Final answer
    x = 139,834.44

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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.