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Finding the Fourth Proportional to 118,614.63, 177,725.11 and 83,480.47

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Solution

The fourth proportional to 118,614.63, 177,725.11 and 83,480.47 is: 125,082.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,614.63 : 177,725.11 = 83,480.47 : x
  2. Step 2: Convert to fraction form
    118,614.63/177,725.11 = 83,480.47/x
  3. Step 3: Cross multiply
    118,614.63x = 177,725.11 × 83,480.47
  4. Step 4: Simplify right side
    118,614.63x = 14,836,576,451.61
  5. Step 5: Solve for x
    x = 14,836,576,451.61/118,614.63
  6. Step 6: Final answer
    x = 125,082.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.