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Finding the Fourth Proportional to 395,630.10, 593,383 and 125,722.70

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Solution

The fourth proportional to 395,630.10, 593,383 and 125,722.70 is: 188,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,630.10 : 593,383 = 125,722.70 : x
  2. Step 2: Convert to fraction form
    395,630.10/593,383 = 125,722.70/x
  3. Step 3: Cross multiply
    395,630.10x = 593,383 × 125,722.70
  4. Step 4: Simplify right side
    395,630.10x = 74,601,712,894.10
  5. Step 5: Solve for x
    x = 74,601,712,894.10/395,630.10
  6. Step 6: Final answer
    x = 188,564.30

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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.