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Finding the Fourth Proportional to 119,511.48, 164,922.65 and 65,796.91

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Solution

The fourth proportional to 119,511.48, 164,922.65 and 65,796.91 is: 90,797.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,511.48 : 164,922.65 = 65,796.91 : x
  2. Step 2: Convert to fraction form
    119,511.48/164,922.65 = 65,796.91/x
  3. Step 3: Cross multiply
    119,511.48x = 164,922.65 × 65,796.91
  4. Step 4: Simplify right side
    119,511.48x = 10,851,400,264.46
  5. Step 5: Solve for x
    x = 10,851,400,264.46/119,511.48
  6. Step 6: Final answer
    x = 90,797.97

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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.