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Finding the Fourth Proportional to 119,563.80, 164,991.72 and 68,573.91

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Solution

The fourth proportional to 119,563.80, 164,991.72 and 68,573.91 is: 94,628.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,563.80 : 164,991.72 = 68,573.91 : x
  2. Step 2: Convert to fraction form
    119,563.80/164,991.72 = 68,573.91/x
  3. Step 3: Cross multiply
    119,563.80x = 164,991.72 × 68,573.91
  4. Step 4: Simplify right side
    119,563.80x = 11,314,127,358.03
  5. Step 5: Solve for x
    x = 11,314,127,358.03/119,563.80
  6. Step 6: Final answer
    x = 94,628.37

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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.