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Finding the Fourth Proportional to 392,051.32, 588,036.66 and 126,002.68

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Solution

The fourth proportional to 392,051.32, 588,036.66 and 126,002.68 is: 188,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,051.32 : 588,036.66 = 126,002.68 : x
  2. Step 2: Convert to fraction form
    392,051.32/588,036.66 = 126,002.68/x
  3. Step 3: Cross multiply
    392,051.32x = 588,036.66 × 126,002.68
  4. Step 4: Simplify right side
    392,051.32x = 74,094,195,098.25
  5. Step 5: Solve for x
    x = 74,094,195,098.25/392,051.32
  6. Step 6: Final answer
    x = 188,991.06

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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.