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Finding the Fourth Proportional to 227,327.28, 340,978.80 and 69,555.84

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Solution

The fourth proportional to 227,327.28, 340,978.80 and 69,555.84 is: 104,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,327.28 : 340,978.80 = 69,555.84 : x
  2. Step 2: Convert to fraction form
    227,327.28/340,978.80 = 69,555.84/x
  3. Step 3: Cross multiply
    227,327.28x = 340,978.80 × 69,555.84
  4. Step 4: Simplify right side
    227,327.28x = 23,717,066,856.19
  5. Step 5: Solve for x
    x = 23,717,066,856.19/227,327.28
  6. Step 6: Final answer
    x = 104,330.05

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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.