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Finding the Fourth Proportional to 231,104, 346,685.16 and 79,330.66

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Solution

The fourth proportional to 231,104, 346,685.16 and 79,330.66 is: 119,005.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,104 : 346,685.16 = 79,330.66 : x
  2. Step 2: Convert to fraction form
    231,104/346,685.16 = 79,330.66/x
  3. Step 3: Cross multiply
    231,104x = 346,685.16 × 79,330.66
  4. Step 4: Simplify right side
    231,104x = 27,502,760,821.58
  5. Step 5: Solve for x
    x = 27,502,760,821.58/231,104
  6. Step 6: Final answer
    x = 119,005.99

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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.