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Finding the Fourth Proportional to 119,087.36, 164,342.64 and 65,377.44

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Solution

The fourth proportional to 119,087.36, 164,342.64 and 65,377.44 is: 90,222.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,087.36 : 164,342.64 = 65,377.44 : x
  2. Step 2: Convert to fraction form
    119,087.36/164,342.64 = 65,377.44/x
  3. Step 3: Cross multiply
    119,087.36x = 164,342.64 × 65,377.44
  4. Step 4: Simplify right side
    119,087.36x = 10,744,301,086.04
  5. Step 5: Solve for x
    x = 10,744,301,086.04/119,087.36
  6. Step 6: Final answer
    x = 90,222.01

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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.