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Finding the Fourth Proportional to 323,311.62, 484,967.39 and 98,673.21

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Solution

The fourth proportional to 323,311.62, 484,967.39 and 98,673.21 is: 148,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,311.62 : 484,967.39 = 98,673.21 : x
  2. Step 2: Convert to fraction form
    323,311.62/484,967.39 = 98,673.21/x
  3. Step 3: Cross multiply
    323,311.62x = 484,967.39 × 98,673.21
  4. Step 4: Simplify right side
    323,311.62x = 47,853,288,623.26
  5. Step 5: Solve for x
    x = 47,853,288,623.26/323,311.62
  6. Step 6: Final answer
    x = 148,009.80

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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.