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Finding the Fourth Proportional to 323,063.09, 484,594.52 and 86,399.63

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Solution

The fourth proportional to 323,063.09, 484,594.52 and 86,399.63 is: 129,599.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,063.09 : 484,594.52 = 86,399.63 : x
  2. Step 2: Convert to fraction form
    323,063.09/484,594.52 = 86,399.63/x
  3. Step 3: Cross multiply
    323,063.09x = 484,594.52 × 86,399.63
  4. Step 4: Simplify right side
    323,063.09x = 41,868,784,805.06
  5. Step 5: Solve for x
    x = 41,868,784,805.06/323,063.09
  6. Step 6: Final answer
    x = 129,599.41

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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.