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Finding the Fourth Proportional to 119,287.80, 164,617.34 and 65,573.15

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Solution

The fourth proportional to 119,287.80, 164,617.34 and 65,573.15 is: 90,491.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,287.80 : 164,617.34 = 65,573.15 : x
  2. Step 2: Convert to fraction form
    119,287.80/164,617.34 = 65,573.15/x
  3. Step 3: Cross multiply
    119,287.80x = 164,617.34 × 65,573.15
  4. Step 4: Simplify right side
    119,287.80x = 10,794,476,377.47
  5. Step 5: Solve for x
    x = 10,794,476,377.47/119,287.80
  6. Step 6: Final answer
    x = 90,491.03

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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.