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Finding the Fourth Proportional to 119,390.49, 164,757.96 and 65,674.34

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Solution

The fourth proportional to 119,390.49, 164,757.96 and 65,674.34 is: 90,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,390.49 : 164,757.96 = 65,674.34 : x
  2. Step 2: Convert to fraction form
    119,390.49/164,757.96 = 65,674.34/x
  3. Step 3: Cross multiply
    119,390.49x = 164,757.96 × 65,674.34
  4. Step 4: Simplify right side
    119,390.49x = 10,820,369,458.96
  5. Step 5: Solve for x
    x = 10,820,369,458.96/119,390.49
  6. Step 6: Final answer
    x = 90,630.08

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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.