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Finding the Fourth Proportional to 281,969.46, 422,979.03 and 79,567.34

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Solution

The fourth proportional to 281,969.46, 422,979.03 and 79,567.34 is: 119,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,969.46 : 422,979.03 = 79,567.34 : x
  2. Step 2: Convert to fraction form
    281,969.46/422,979.03 = 79,567.34/x
  3. Step 3: Cross multiply
    281,969.46x = 422,979.03 × 79,567.34
  4. Step 4: Simplify right side
    281,969.46x = 33,655,314,177.99
  5. Step 5: Solve for x
    x = 33,655,314,177.99/281,969.46
  6. Step 6: Final answer
    x = 119,358.01

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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.