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Finding the Fourth Proportional to 322,448.72, 483,725.28 and 97,756.40

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Solution

The fourth proportional to 322,448.72, 483,725.28 and 97,756.40 is: 146,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,448.72 : 483,725.28 = 97,756.40 : x
  2. Step 2: Convert to fraction form
    322,448.72/483,725.28 = 97,756.40/x
  3. Step 3: Cross multiply
    322,448.72x = 483,725.28 × 97,756.40
  4. Step 4: Simplify right side
    322,448.72x = 47,287,241,961.79
  5. Step 5: Solve for x
    x = 47,287,241,961.79/322,448.72
  6. Step 6: Final answer
    x = 146,650.43

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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.