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Finding the Fourth Proportional to 259,564.52, 389,362.17 and 72,576.02

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Solution

The fourth proportional to 259,564.52, 389,362.17 and 72,576.02 is: 108,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,564.52 : 389,362.17 = 72,576.02 : x
  2. Step 2: Convert to fraction form
    259,564.52/389,362.17 = 72,576.02/x
  3. Step 3: Cross multiply
    259,564.52x = 389,362.17 × 72,576.02
  4. Step 4: Simplify right side
    259,564.52x = 28,258,356,637.16
  5. Step 5: Solve for x
    x = 28,258,356,637.16/259,564.52
  6. Step 6: Final answer
    x = 108,868.33

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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.