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Finding the Fourth Proportional to 124,306, 171,542.31 and 67,717.36

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Solution

The fourth proportional to 124,306, 171,542.31 and 67,717.36 is: 93,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,306 : 171,542.31 = 67,717.36 : x
  2. Step 2: Convert to fraction form
    124,306/171,542.31 = 67,717.36/x
  3. Step 3: Cross multiply
    124,306x = 171,542.31 × 67,717.36
  4. Step 4: Simplify right side
    124,306x = 11,616,392,361.50
  5. Step 5: Solve for x
    x = 11,616,392,361.50/124,306
  6. Step 6: Final answer
    x = 93,449.97

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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.