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Finding the Fourth Proportional to 119,340.86, 164,685.96 and 65,622.68

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Solution

The fourth proportional to 119,340.86, 164,685.96 and 65,622.68 is: 90,556.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,340.86 : 164,685.96 = 65,622.68 : x
  2. Step 2: Convert to fraction form
    119,340.86/164,685.96 = 65,622.68/x
  3. Step 3: Cross multiply
    119,340.86x = 164,685.96 × 65,622.68
  4. Step 4: Simplify right side
    119,340.86x = 10,807,134,053.57
  5. Step 5: Solve for x
    x = 10,807,134,053.57/119,340.86
  6. Step 6: Final answer
    x = 90,556.86

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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.