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Finding the Fourth Proportional to 124,446.52, 171,739.74 and 67,861

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Solution

The fourth proportional to 124,446.52, 171,739.74 and 67,861 is: 93,650.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,446.52 : 171,739.74 = 67,861 : x
  2. Step 2: Convert to fraction form
    124,446.52/171,739.74 = 67,861/x
  3. Step 3: Cross multiply
    124,446.52x = 171,739.74 × 67,861
  4. Step 4: Simplify right side
    124,446.52x = 11,654,430,496.14
  5. Step 5: Solve for x
    x = 11,654,430,496.14/124,446.52
  6. Step 6: Final answer
    x = 93,650.11

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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.