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Finding the Fourth Proportional to 228,080.70, 314,743.42 and 124,717.30

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Solution

The fourth proportional to 228,080.70, 314,743.42 and 124,717.30 is: 172,105.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,080.70 : 314,743.42 = 124,717.30 : x
  2. Step 2: Convert to fraction form
    228,080.70/314,743.42 = 124,717.30/x
  3. Step 3: Cross multiply
    228,080.70x = 314,743.42 × 124,717.30
  4. Step 4: Simplify right side
    228,080.70x = 39,253,948,911.58
  5. Step 5: Solve for x
    x = 39,253,948,911.58/228,080.70
  6. Step 6: Final answer
    x = 172,105.53

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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.