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Finding the Fourth Proportional to 235,211.40, 351,953.10 and 173,003.40

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Solution

The fourth proportional to 235,211.40, 351,953.10 and 173,003.40 is: 258,869.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,211.40 : 351,953.10 = 173,003.40 : x
  2. Step 2: Convert to fraction form
    235,211.40/351,953.10 = 173,003.40/x
  3. Step 3: Cross multiply
    235,211.40x = 351,953.10 × 173,003.40
  4. Step 4: Simplify right side
    235,211.40x = 60,889,082,940.54
  5. Step 5: Solve for x
    x = 60,889,082,940.54/235,211.40
  6. Step 6: Final answer
    x = 258,869.61

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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.