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Finding the Fourth Proportional to 359,299.28, 538,800.44 and 122,660.96

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Solution

The fourth proportional to 359,299.28, 538,800.44 and 122,660.96 is: 183,940.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,299.28 : 538,800.44 = 122,660.96 : x
  2. Step 2: Convert to fraction form
    359,299.28/538,800.44 = 122,660.96/x
  3. Step 3: Cross multiply
    359,299.28x = 538,800.44 × 122,660.96
  4. Step 4: Simplify right side
    359,299.28x = 66,089,779,218.82
  5. Step 5: Solve for x
    x = 66,089,779,218.82/359,299.28
  6. Step 6: Final answer
    x = 183,940.75

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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.