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Finding the Fourth Proportional to 322,480.10, 483,720.15 and 163,047.80

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Solution

The fourth proportional to 322,480.10, 483,720.15 and 163,047.80 is: 244,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,480.10 : 483,720.15 = 163,047.80 : x
  2. Step 2: Convert to fraction form
    322,480.10/483,720.15 = 163,047.80/x
  3. Step 3: Cross multiply
    322,480.10x = 483,720.15 × 163,047.80
  4. Step 4: Simplify right side
    322,480.10x = 78,869,506,273.17
  5. Step 5: Solve for x
    x = 78,869,506,273.17/322,480.10
  6. Step 6: Final answer
    x = 244,571.70

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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.