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Finding the Fourth Proportional to 323,064.84, 484,597.15 and 86,401.37

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Solution

The fourth proportional to 323,064.84, 484,597.15 and 86,401.37 is: 129,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,064.84 : 484,597.15 = 86,401.37 : x
  2. Step 2: Convert to fraction form
    323,064.84/484,597.15 = 86,401.37/x
  3. Step 3: Cross multiply
    323,064.84x = 484,597.15 × 86,401.37
  4. Step 4: Simplify right side
    323,064.84x = 41,869,858,653.58
  5. Step 5: Solve for x
    x = 41,869,858,653.58/323,064.84
  6. Step 6: Final answer
    x = 129,602.03

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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.