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Finding the Fourth Proportional to 323,064.59, 484,596.77 and 86,401.13

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Solution

The fourth proportional to 323,064.59, 484,596.77 and 86,401.13 is: 129,601.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,064.59 : 484,596.77 = 86,401.13 : x
  2. Step 2: Convert to fraction form
    323,064.59/484,596.77 = 86,401.13/x
  3. Step 3: Cross multiply
    323,064.59x = 484,596.77 × 86,401.13
  4. Step 4: Simplify right side
    323,064.59x = 41,869,708,522.35
  5. Step 5: Solve for x
    x = 41,869,708,522.35/323,064.59
  6. Step 6: Final answer
    x = 129,601.66

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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.