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Finding the Fourth Proportional to 231,950.36, 347,980.01 and 72,018.08

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Solution

The fourth proportional to 231,950.36, 347,980.01 and 72,018.08 is: 108,044.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,950.36 : 347,980.01 = 72,018.08 : x
  2. Step 2: Convert to fraction form
    231,950.36/347,980.01 = 72,018.08/x
  3. Step 3: Cross multiply
    231,950.36x = 347,980.01 × 72,018.08
  4. Step 4: Simplify right side
    231,950.36x = 25,060,852,198.58
  5. Step 5: Solve for x
    x = 25,060,852,198.58/231,950.36
  6. Step 6: Final answer
    x = 108,044.03

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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.