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Finding the Fourth Proportional to 323,015.21, 484,567.14 and 109,725.87

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Solution

The fourth proportional to 323,015.21, 484,567.14 and 109,725.87 is: 164,603.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,015.21 : 484,567.14 = 109,725.87 : x
  2. Step 2: Convert to fraction form
    323,015.21/484,567.14 = 109,725.87/x
  3. Step 3: Cross multiply
    323,015.21x = 484,567.14 × 109,725.87
  4. Step 4: Simplify right side
    323,015.21x = 53,169,553,238.51
  5. Step 5: Solve for x
    x = 53,169,553,238.51/323,015.21
  6. Step 6: Final answer
    x = 164,603.87

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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.