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Finding the Fourth Proportional to 482,201.70, 723,337.17 and 127,211.50

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Solution

The fourth proportional to 482,201.70, 723,337.17 and 127,211.50 is: 190,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,201.70 : 723,337.17 = 127,211.50 : x
  2. Step 2: Convert to fraction form
    482,201.70/723,337.17 = 127,211.50/x
  3. Step 3: Cross multiply
    482,201.70x = 723,337.17 × 127,211.50
  4. Step 4: Simplify right side
    482,201.70x = 92,016,806,401.46
  5. Step 5: Solve for x
    x = 92,016,806,401.46/482,201.70
  6. Step 6: Final answer
    x = 190,826.38

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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.