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Finding the Fourth Proportional to 119,484.86, 164,889.11 and 65,769.63

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Solution

The fourth proportional to 119,484.86, 164,889.11 and 65,769.63 is: 90,762.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,484.86 : 164,889.11 = 65,769.63 : x
  2. Step 2: Convert to fraction form
    119,484.86/164,889.11 = 65,769.63/x
  3. Step 3: Cross multiply
    119,484.86x = 164,889.11 × 65,769.63
  4. Step 4: Simplify right side
    119,484.86x = 10,844,695,755.73
  5. Step 5: Solve for x
    x = 10,844,695,755.73/119,484.86
  6. Step 6: Final answer
    x = 90,762.09

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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.