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Finding the Fourth Proportional to 119,179.43, 164,468.78 and 65,464.45

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Solution

The fourth proportional to 119,179.43, 164,468.78 and 65,464.45 is: 90,341.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,179.43 : 164,468.78 = 65,464.45 : x
  2. Step 2: Convert to fraction form
    119,179.43/164,468.78 = 65,464.45/x
  3. Step 3: Cross multiply
    119,179.43x = 164,468.78 × 65,464.45
  4. Step 4: Simplify right side
    119,179.43x = 10,766,858,657.01
  5. Step 5: Solve for x
    x = 10,766,858,657.01/119,179.43
  6. Step 6: Final answer
    x = 90,341.58

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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.