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Finding the Fourth Proportional to 392,139.84, 588,268.32 and 181,799.04

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Solution

The fourth proportional to 392,139.84, 588,268.32 and 181,799.04 is: 272,725.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,139.84 : 588,268.32 = 181,799.04 : x
  2. Step 2: Convert to fraction form
    392,139.84/588,268.32 = 181,799.04/x
  3. Step 3: Cross multiply
    392,139.84x = 588,268.32 × 181,799.04
  4. Step 4: Simplify right side
    392,139.84x = 106,946,615,838.41
  5. Step 5: Solve for x
    x = 106,946,615,838.41/392,139.84
  6. Step 6: Final answer
    x = 272,725.71

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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.