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Finding the Fourth Proportional to 119,373.95, 164,739.17 and 65,660.38

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Solution

The fourth proportional to 119,373.95, 164,739.17 and 65,660.38 is: 90,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,373.95 : 164,739.17 = 65,660.38 : x
  2. Step 2: Convert to fraction form
    119,373.95/164,739.17 = 65,660.38/x
  3. Step 3: Cross multiply
    119,373.95x = 164,739.17 × 65,660.38
  4. Step 4: Simplify right side
    119,373.95x = 10,816,836,503.08
  5. Step 5: Solve for x
    x = 10,816,836,503.08/119,373.95
  6. Step 6: Final answer
    x = 90,613.04

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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.