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Finding the Fourth Proportional to 231,874.60, 348,042.30 and 113,679.40

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Solution

The fourth proportional to 231,874.60, 348,042.30 and 113,679.40 is: 170,632.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,874.60 : 348,042.30 = 113,679.40 : x
  2. Step 2: Convert to fraction form
    231,874.60/348,042.30 = 113,679.40/x
  3. Step 3: Cross multiply
    231,874.60x = 348,042.30 × 113,679.40
  4. Step 4: Simplify right side
    231,874.60x = 39,565,239,838.62
  5. Step 5: Solve for x
    x = 39,565,239,838.62/231,874.60
  6. Step 6: Final answer
    x = 170,632.06

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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.