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Finding the Fourth Proportional to 124,495.27, 171,801.97 and 67,905.43

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Solution

The fourth proportional to 124,495.27, 171,801.97 and 67,905.43 is: 93,708.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,495.27 : 171,801.97 = 67,905.43 : x
  2. Step 2: Convert to fraction form
    124,495.27/171,801.97 = 67,905.43/x
  3. Step 3: Cross multiply
    124,495.27x = 171,801.97 × 67,905.43
  4. Step 4: Simplify right side
    124,495.27x = 11,666,286,647.70
  5. Step 5: Solve for x
    x = 11,666,286,647.70/124,495.27
  6. Step 6: Final answer
    x = 93,708.67

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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.