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Finding the Fourth Proportional to 124,337.43, 171,585.54 and 67,749.21

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Solution

The fourth proportional to 124,337.43, 171,585.54 and 67,749.21 is: 93,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,337.43 : 171,585.54 = 67,749.21 : x
  2. Step 2: Convert to fraction form
    124,337.43/171,585.54 = 67,749.21/x
  3. Step 3: Cross multiply
    124,337.43x = 171,585.54 × 67,749.21
  4. Step 4: Simplify right side
    124,337.43x = 11,624,784,782.42
  5. Step 5: Solve for x
    x = 11,624,784,782.42/124,337.43
  6. Step 6: Final answer
    x = 93,493.85

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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.